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200 | Answer the following multiple choice question by selecting the correct option.
Question: What substances, which are distinct from acids and bases, form when ions form ionic bonds?
A: oils
B: vitamins
C: water molecules
D: salts
Answer (with only the letter, no other text): | Answer the following multiple choice question by selecting the correct option.
Context: Salts Recall that salts are formed when ions form ionic bonds. In these reactions, one atom gives up one or more electrons, and thus becomes positively charged, whereas the other accepts one or more electrons and becomes negatively... | What substances, which are distinct from acids and bases, form when ions form ionic bonds? | oils | vitamins | water molecules | salts | D | Salts Recall that salts are formed when ions form ionic bonds. In these reactions, one atom gives up one or more electrons, and thus becomes positively charged, whereas the other accepts one or more electrons and becomes negatively charged. You can now define a salt as a substance that, when dissolved in water, dissoci... | sciq |
201 | Answer the following multiple choice question by selecting the correct option.
Question: What is the name for biochemical compounds that consist of one or more chains of small molecules called amino acids?
A: protons
B: proteins
C: lipids
D: hormones
Answer (with only the letter, no other text): | Answer the following multiple choice question by selecting the correct option.
Context: Proteins are biochemical compounds that consist of one or more chains of small molecules called amino acids. Amino acids are the monomers of proteins. There are only about 20 different amino acids. The sequence of amino acids in ch... | What is the name for biochemical compounds that consist of one or more chains of small molecules called amino acids? | protons | proteins | lipids | hormones | B | Proteins are biochemical compounds that consist of one or more chains of small molecules called amino acids. Amino acids are the monomers of proteins. There are only about 20 different amino acids. The sequence of amino acids in chains and the number of chains in a protein determine the protein’s shape. Shapes may be v... | sciq |
202 | Answer the following multiple choice question by selecting the correct option.
Question: What are the ionic compounds that produce negative hydroxide ions when dissolved in water?
A: enzymes
B: isotopes
C: bases
D: acids
Answer (with only the letter, no other text): | Answer the following multiple choice question by selecting the correct option.
Context: Bases are ionic compounds that produce negative hydroxide ions (OH - ) when dissolved in water. An ionic compound contains positive metal ions and negative nonmetal ions held together by ionic bonds. (Ions are atoms that have becom... | What are the ionic compounds that produce negative hydroxide ions when dissolved in water? | enzymes | isotopes | bases | acids | C | Bases are ionic compounds that produce negative hydroxide ions (OH - ) when dissolved in water. An ionic compound contains positive metal ions and negative nonmetal ions held together by ionic bonds. (Ions are atoms that have become charged particles because they have either lost or gained electrons. ) An example of a ... | sciq |
203 | Answer the following multiple choice question by selecting the correct option.
Question: The atomic number of tungsten is 74. therefore, in a neutral atom of tungsten, there are 74 electrons. the atomic number of argon is 18. therefore, in a neutral atom of argon, there are how many electrons?
A: 18
B: 36
C: 9
D: 74
... | Answer the following multiple choice question by selecting the correct option.
Context: The atomic number of tungsten is 74. Therefore, in a neutral atom of tungsten, there are 74 electrons. The atomic number of argon is 18. Therefore, in a neutral atom of argon, there are 18 electrons.
Question: The atomic number of... | The atomic number of tungsten is 74. therefore, in a neutral atom of tungsten, there are 74 electrons. the atomic number of argon is 18. therefore, in a neutral atom of argon, there are how many electrons? | 18 | 36 | 9 | 74 | A | The atomic number of tungsten is 74. Therefore, in a neutral atom of tungsten, there are 74 electrons. The atomic number of argon is 18. Therefore, in a neutral atom of argon, there are 18 electrons. | sciq |
204 | Answer the following multiple choice question by selecting the correct option.
Question: What is the apparatus used for carrying out an electrolysis reaction?
A: catalyst
B: Golgi apparatus
C: an aqueous cell
D: an electrolytic cell
Answer (with only the letter, no other text): | Answer the following multiple choice question by selecting the correct option.
Context: An electrolytic cell is the apparatus used for carrying out an electrolysis reaction. In an electrolytic cell, electric current is applied to provide a source of electrons for driving the reaction in a nonspontaneous direction. In ... | What is the apparatus used for carrying out an electrolysis reaction? | catalyst | Golgi apparatus | an aqueous cell | an electrolytic cell | D | An electrolytic cell is the apparatus used for carrying out an electrolysis reaction. In an electrolytic cell, electric current is applied to provide a source of electrons for driving the reaction in a nonspontaneous direction. In a voltaic cell, the reaction goes in a direction that releases electrons spontaneously. I... | sciq |
205 | Answer the following multiple choice question by selecting the correct option.
Question: What two ways may light be transmitted?
A: reflected or refracted
B: refracted or scattered
C: absorption and refraction
D: magnified or scattered
Answer (with only the letter, no other text): | Answer the following multiple choice question by selecting the correct option.
Context: Transmitted light may be refracted or scattered. When does each process occur?.
Question: What two ways may light be transmitted?
A: reflected or refracted
B: refracted or scattered
C: absorption and refraction
D: magnified or sc... | What two ways may light be transmitted? | reflected or refracted | refracted or scattered | absorption and refraction | magnified or scattered | B | Transmitted light may be refracted or scattered. When does each process occur?. | sciq |
206 | Answer the following multiple choice question by selecting the correct option.
Question: Triggered by changes in the environment, migration and hibernation occur as cycles on what temporal basis?
A: annual
B: seasonally
C: monthly
D: bi-annually
Answer (with only the letter, no other text): | Answer the following multiple choice question by selecting the correct option.
Context: Examples of behaviors with annual cycles include migration and hibernation. Both are innate behaviors. They are triggered by changes in the environment, such as the days growing shorter in the fall.
Question: Triggered by changes ... | Triggered by changes in the environment, migration and hibernation occur as cycles on what temporal basis? | annual | seasonally | monthly | bi-annually | A | Examples of behaviors with annual cycles include migration and hibernation. Both are innate behaviors. They are triggered by changes in the environment, such as the days growing shorter in the fall. | sciq |
207 | Answer the following multiple choice question by selecting the correct option.
Question: What pair of tubes that extends toward the ovaries features a fringelike structure that sweeps eggs inside?
A: ovarian tubes
B: fallopian tubes
C: vas deferens
D: golgi apparatus
Answer (with only the letter, no other text): | Answer the following multiple choice question by selecting the correct option.
Context: Extending from the upper corners of the uterus are the two fallopian tubes. Each tube reaches (but is not attached to) one of the ovaries. The ovary end of the tube has a fringelike structure that moves in waves. The motion sweeps ... | What pair of tubes that extends toward the ovaries features a fringelike structure that sweeps eggs inside? | ovarian tubes | fallopian tubes | vas deferens | golgi apparatus | B | Extending from the upper corners of the uterus are the two fallopian tubes. Each tube reaches (but is not attached to) one of the ovaries. The ovary end of the tube has a fringelike structure that moves in waves. The motion sweeps eggs from the ovary into the tube. | sciq |
208 | Answer the following multiple choice question by selecting the correct option.
Question: In most animals, what sense is related to balance or equilibrium?
A: vision
B: tasting
C: hearing
D: feeling
Answer (with only the letter, no other text): | Answer the following multiple choice question by selecting the correct option.
Question: In most animals, what sense is related to balance or equilibrium?
A: vision
B: tasting
C: hearing
D: feeling
Answer (with only the letter, no other text): | In most animals, what sense is related to balance or equilibrium? | vision | tasting | hearing | feeling | C | null | sciq |
209 | Answer the following multiple choice question by selecting the correct option.
Question: Terminal pods are located at the end of what?
A: stems
B: leaves
C: fruits
D: spines
Answer (with only the letter, no other text): | Answer the following multiple choice question by selecting the correct option.
Context: Mendel investigated seven different characteristics in pea plants. In this chart, cotyledons refer to the tiny leaves inside seeds. Axial pods are located along the stems. Terminal pods are located at the ends of the stems.
Questi... | Terminal pods are located at the end of what? | stems | leaves | fruits | spines | A | Mendel investigated seven different characteristics in pea plants. In this chart, cotyledons refer to the tiny leaves inside seeds. Axial pods are located along the stems. Terminal pods are located at the ends of the stems. | sciq |
210 | Answer the following multiple choice question by selecting the correct option.
Question: What forms when the spores from two parents fuse during sexual reproduction?
A: zygospore
B: monospore
C: spirogyra
D: xerophyte
Answer (with only the letter, no other text): | Answer the following multiple choice question by selecting the correct option.
Context: Sexual reproduction occurs when spores from two parents fuse and form a zygospore.
Question: What forms when the spores from two parents fuse during sexual reproduction?
A: zygospore
B: monospore
C: spirogyra
D: xerophyte
Answer... | What forms when the spores from two parents fuse during sexual reproduction? | zygospore | monospore | spirogyra | xerophyte | A | Sexual reproduction occurs when spores from two parents fuse and form a zygospore. | sciq |
211 | Answer the following multiple choice question by selecting the correct option.
Question: What is the name of the galaxy we live in?
A: milky way
B: Bode's Galaxy
C: Andromeda
D: Centaurus A
Answer (with only the letter, no other text): | Answer the following multiple choice question by selecting the correct option.
Context: Like other spiral galaxies, our galaxy has a disk, a central bulge, and spiral arms. The disk is about 100,000 light-years across and 3,000 light-years thick. Most of the Galaxy’s gas, dust, young stars, and open clusters are in th... | What is the name of the galaxy we live in? | milky way | Bode's Galaxy | Andromeda | Centaurus A | A | Like other spiral galaxies, our galaxy has a disk, a central bulge, and spiral arms. The disk is about 100,000 light-years across and 3,000 light-years thick. Most of the Galaxy’s gas, dust, young stars, and open clusters are in the disk. | sciq |
212 | Answer the following multiple choice question by selecting the correct option.
Question: What are the most common seedless vascular plants?
A: grasses
B: trees
C: weeds
D: ferns
Answer (with only the letter, no other text): | Answer the following multiple choice question by selecting the correct option.
Context: Ferns are the most common seedless vascular plants ( Figure below ). They usually have large divided leaves called fronds. In most ferns, fronds develop from a curled-up formation called a fiddlehead ( Figure below ). The fiddlehea... | What are the most common seedless vascular plants? | grasses | trees | weeds | ferns | D | Ferns are the most common seedless vascular plants ( Figure below ). They usually have large divided leaves called fronds. In most ferns, fronds develop from a curled-up formation called a fiddlehead ( Figure below ). The fiddlehead looks like the curled decoration on the end of a stringed instrument, such as a fiddle.... | sciq |
213 | Answer the following multiple choice question by selecting the correct option.
Question: In a monogamous pairing, a male individual is generally paired with what other type of individual in a sexual relationship?
A: drone
B: male
C: worker
D: female
Answer (with only the letter, no other text): | Answer the following multiple choice question by selecting the correct option.
Context: Visit this website (http://openstaxcollege. org/l/sex_selection) for informative videos on sexual selection. In monogamous systems, one male and one female are paired for at least one breeding season. In some animals, such as the g... | In a monogamous pairing, a male individual is generally paired with what other type of individual in a sexual relationship? | drone | male | worker | female | D | Visit this website (http://openstaxcollege. org/l/sex_selection) for informative videos on sexual selection. In monogamous systems, one male and one female are paired for at least one breeding season. In some animals, such as the gray wolf, these associations can last much longer, even a lifetime. Several explanations ... | sciq |
214 | Answer the following multiple choice question by selecting the correct option.
Question: What is a mass spectrometer used to measure?
A: partial atomic masses
B: optical atomic masses
C: subatomic masses
D: relative atomic masses
Answer (with only the letter, no other text): | Answer the following multiple choice question by selecting the correct option.
Context: Although the masses of the electron, the proton, and the neutron are known to a high degree of precision (Table 1.3 "Properties of Subatomic Particles*"), the mass of any given atom is not simply the sum of the masses of its electr... | What is a mass spectrometer used to measure? | partial atomic masses | optical atomic masses | subatomic masses | relative atomic masses | D | Although the masses of the electron, the proton, and the neutron are known to a high degree of precision (Table 1.3 "Properties of Subatomic Particles*"), the mass of any given atom is not simply the sum of the masses of its electrons, protons, and neutrons. For example, the ratio of the masses of 1H (hydrogen) and 2H ... | sciq |
215 | Answer the following multiple choice question by selecting the correct option.
Question: What combines sets of genes from two different parents leading to genetically diverse offspring?
A: sexual reproduction
B: subject reproduction
C: cellular reproduction
D: sexual destruction
Answer (with only the letter, no othe... | Answer the following multiple choice question by selecting the correct option.
Question: What combines sets of genes from two different parents leading to genetically diverse offspring?
A: sexual reproduction
B: subject reproduction
C: cellular reproduction
D: sexual destruction
Answer (with only the letter, no othe... | What combines sets of genes from two different parents leading to genetically diverse offspring? | sexual reproduction | subject reproduction | cellular reproduction | sexual destruction | A | null | sciq |
216 | Answer the following multiple choice question by selecting the correct option.
Question: Global warming will raise ocean levels due to melt water from glaciers and the greater volume of what?
A: warmer water
B: rain
C: rainforests
D: greenhouse gases
Answer (with only the letter, no other text): | Answer the following multiple choice question by selecting the correct option.
Context: Range shifts are already being observed: for example, some European bird species ranges have moved 91 km northward. The same study suggested that the optimal shift based on warming trends was double that distance, suggesting that t... | Global warming will raise ocean levels due to melt water from glaciers and the greater volume of what? | warmer water | rain | rainforests | greenhouse gases | A | Range shifts are already being observed: for example, some European bird species ranges have moved 91 km northward. The same study suggested that the optimal shift based on warming trends was double that distance, suggesting that the populations are not moving quickly enough. Range shifts have also been observed in pla... | sciq |
217 | Answer the following multiple choice question by selecting the correct option.
Question: What are groups of young stars loosely held together by gravity called?
A: constellations
B: closed clusters
C: open clusters
D: galaxies
Answer (with only the letter, no other text): | Answer the following multiple choice question by selecting the correct option.
Context: Open clusters are groups of young stars loosely held together by gravity.
Question: What are groups of young stars loosely held together by gravity called?
A: constellations
B: closed clusters
C: open clusters
D: galaxies
Answer... | What are groups of young stars loosely held together by gravity called? | constellations | closed clusters | open clusters | galaxies | C | Open clusters are groups of young stars loosely held together by gravity. | sciq |
218 | Answer the following multiple choice question by selecting the correct option.
Question: What does a pollinator pick up from its body and carry directly to another plant of the same species?
A: pollen
B: pathogen
C: spore
D: seed
Answer (with only the letter, no other text): | Answer the following multiple choice question by selecting the correct option.
Context: Wind-blown pollen might land anywhere and be wasted. Another adaptation solved this problem. Plants evolved traits that attract specific animal pollinators. Like the bee in Figure below , a pollinator picks up pollen on its body an... | What does a pollinator pick up from its body and carry directly to another plant of the same species? | pollen | pathogen | spore | seed | A | Wind-blown pollen might land anywhere and be wasted. Another adaptation solved this problem. Plants evolved traits that attract specific animal pollinators. Like the bee in Figure below , a pollinator picks up pollen on its body and carries it directly to another plant of the same species. This greatly increases the ch... | sciq |
219 | Answer the following multiple choice question by selecting the correct option.
Question: What is formed when an oxygen atom picks up a pair of hydrogen ions from a solution?
A: water
B: turpentine
C: liquid
D: ammonia
Answer (with only the letter, no other text): | Answer the following multiple choice question by selecting the correct option.
Question: What is formed when an oxygen atom picks up a pair of hydrogen ions from a solution?
A: water
B: turpentine
C: liquid
D: ammonia
Answer (with only the letter, no other text): | What is formed when an oxygen atom picks up a pair of hydrogen ions from a solution? | water | turpentine | liquid | ammonia | A | null | sciq |
220 | Answer the following multiple choice question by selecting the correct option.
Question: What does the driving of turbines by the heating of water to steam accomplish?
A: depletion of electricity
B: absorption of electricity
C: generation of electricity
D: diffusion of electricity
Answer (with only the letter, no ot... | Answer the following multiple choice question by selecting the correct option.
Context: Nuclear reactors heat water to steam to drive a turbine for generation of electricity.
Question: What does the driving of turbines by the heating of water to steam accomplish?
A: depletion of electricity
B: absorption of electric... | What does the driving of turbines by the heating of water to steam accomplish? | depletion of electricity | absorption of electricity | generation of electricity | diffusion of electricity | C | Nuclear reactors heat water to steam to drive a turbine for generation of electricity. | sciq |
221 | Answer the following multiple choice question by selecting the correct option.
Question: What is a device that changes kinetic energy to electrical energy through electromagnetic induction?
A: a battery
B: an electric generator
C: a windmill
D: a diesel engine
Answer (with only the letter, no other text): | Answer the following multiple choice question by selecting the correct option.
Context: An electric generator is a device that changes kinetic energy to electrical energy through electromagnetic induction. A simple diagram of an electric generator is shown in Figure below . In a generator, some form of energy is appli... | What is a device that changes kinetic energy to electrical energy through electromagnetic induction? | a battery | an electric generator | a windmill | a diesel engine | B | An electric generator is a device that changes kinetic energy to electrical energy through electromagnetic induction. A simple diagram of an electric generator is shown in Figure below . In a generator, some form of energy is applied to turn a shaft. This causes a coil of wire to rotate between opposite poles of a magn... | sciq |
222 | Answer the following multiple choice question by selecting the correct option.
Question: How many naturally occurring elements are known on earth?
A: 60
B: 90
C: 87
D: 85
Answer (with only the letter, no other text): | Answer the following multiple choice question by selecting the correct option.
Context: An element, as defined in Chapter 1 "Chemistry, Matter, and Measurement", is a substance that cannot be broken down into simpler chemical substances. There are about 90 naturally occurring elements known on Earth. Using technology,... | How many naturally occurring elements are known on earth? | 60 | 90 | 87 | 85 | B | An element, as defined in Chapter 1 "Chemistry, Matter, and Measurement", is a substance that cannot be broken down into simpler chemical substances. There are about 90 naturally occurring elements known on Earth. Using technology, scientists have been able to create nearly 30 additional elements that do not occur in n... | sciq |
223 | Answer the following multiple choice question by selecting the correct option.
Question: What are the two types of vesicle transport called?
A: eptocytosis and exocytosis
B: epithelium and exocytosis
C: endocytosis and exocytosis
D: dielectric and exocytosis
Answer (with only the letter, no other text): | Answer the following multiple choice question by selecting the correct option.
Question: What are the two types of vesicle transport called?
A: eptocytosis and exocytosis
B: epithelium and exocytosis
C: endocytosis and exocytosis
D: dielectric and exocytosis
Answer (with only the letter, no other text): | What are the two types of vesicle transport called? | eptocytosis and exocytosis | epithelium and exocytosis | endocytosis and exocytosis | dielectric and exocytosis | C | null | sciq |
224 | Answer the following multiple choice question by selecting the correct option.
Question: What do you call a species that has died out in the past?
A: inhabit
B: endangered
C: remnant
D: extinct
Answer (with only the letter, no other text): | Answer the following multiple choice question by selecting the correct option.
Context: Life is complex, and there are millions of species alive today. Many millions more lived in the past and then went extinct. Organisms include microscopic, single-celled organisms. They also include complex, multicellular animals su... | What do you call a species that has died out in the past? | inhabit | endangered | remnant | extinct | D | Life is complex, and there are millions of species alive today. Many millions more lived in the past and then went extinct. Organisms include microscopic, single-celled organisms. They also include complex, multicellular animals such as you. Clearly, life science is a huge science. That’s why a life scientist usually s... | sciq |
225 | Answer the following multiple choice question by selecting the correct option.
Question: Where does the embryo develop in a plant?
A: outside the female plant after fertilization
B: inside the stem after fertilization
C: inside the male plant after fertilization
D: inside the female plant after fertilization
Answer ... | Answer the following multiple choice question by selecting the correct option.
Context: In plants, the embryo develops inside of the female plant after fertilization. Algae do not keep the embryo inside of themselves but release it into water. This was the first feature to evolve that separated plants from green algae... | Where does the embryo develop in a plant? | outside the female plant after fertilization | inside the stem after fertilization | inside the male plant after fertilization | inside the female plant after fertilization | D | In plants, the embryo develops inside of the female plant after fertilization. Algae do not keep the embryo inside of themselves but release it into water. This was the first feature to evolve that separated plants from green algae. This is also the only adaptation shared by all plants. | sciq |
226 | Answer the following multiple choice question by selecting the correct option.
Question: What is the method of setting or correcting a measuring device by matching it to known measurement standards called?
A: distortion
B: precision
C: parallax
D: calibration
Answer (with only the letter, no other text): | Answer the following multiple choice question by selecting the correct option.
Context: When using measuring devices, we often use a technique called calibration to increase the accuracy of our measurements. Calibration is a method of setting or correcting a measuring device by matching it to known measurement standar... | What is the method of setting or correcting a measuring device by matching it to known measurement standards called? | distortion | precision | parallax | calibration | D | When using measuring devices, we often use a technique called calibration to increase the accuracy of our measurements. Calibration is a method of setting or correcting a measuring device by matching it to known measurement standards. To better understand calibration, we will look at the example of calibrating a thermo... | sciq |
227 | Answer the following multiple choice question by selecting the correct option.
Question: What property of warm air causes it to rise above cold air?
A: lower density
B: greater density
C: greater pressure
D: higher temperature
Answer (with only the letter, no other text): | Answer the following multiple choice question by selecting the correct option.
Context: The warm-air vent is placed near the floor of the room. Warm air is less dense than cold air so it rises. If the warm-air vent were placed near the ceiling instead, how would this affect the transfer of thermal energy throughout th... | What property of warm air causes it to rise above cold air? | lower density | greater density | greater pressure | higher temperature | A | The warm-air vent is placed near the floor of the room. Warm air is less dense than cold air so it rises. If the warm-air vent were placed near the ceiling instead, how would this affect the transfer of thermal energy throughout the room?. | sciq |
228 | Answer the following multiple choice question by selecting the correct option.
Question: Which branch of biology studies animal behavior?
A: microbiology
B: embryology
C: ethology
D: anthropology
Answer (with only the letter, no other text): | Answer the following multiple choice question by selecting the correct option.
Context: The branch of biology that studies animal behavior is called ethology. Ethologists usually study how animals behave in their natural environment. They try to determine the cause of behaviors, how behaviors develop, and how and why ... | Which branch of biology studies animal behavior? | microbiology | embryology | ethology | anthropology | C | The branch of biology that studies animal behavior is called ethology. Ethologists usually study how animals behave in their natural environment. They try to determine the cause of behaviors, how behaviors develop, and how and why behaviors evolve. | sciq |
229 | Answer the following multiple choice question by selecting the correct option.
Question: What unit of measure is equal to the amount of work a horse can do in 1 minute?
A: joule
B: watt
C: torque
D: horsepower
Answer (with only the letter, no other text): | Answer the following multiple choice question by selecting the correct option.
Context: Power may be measured in a unit called the horsepower. One horsepower is the amount of work a horse can do in 1 minute, which equals 745 watts of power.
Question: What unit of measure is equal to the amount of work a horse can do ... | What unit of measure is equal to the amount of work a horse can do in 1 minute? | joule | watt | torque | horsepower | D | Power may be measured in a unit called the horsepower. One horsepower is the amount of work a horse can do in 1 minute, which equals 745 watts of power. | sciq |
230 | Answer the following multiple choice question by selecting the correct option.
Question: What organism is characterized by an incomplete digestive system and a single, tentacled opening?
A: annelids
B: prokaryotes
C: sponges
D: cnidarians
Answer (with only the letter, no other text): | Answer the following multiple choice question by selecting the correct option.
Context: Cnidarians have an incomplete digestive system with a single opening. The opening is surrounded by tentacles, which are covered with nematocyst cells and used to capture prey. Digestion takes place in the digestive cavity. Nutrient... | What organism is characterized by an incomplete digestive system and a single, tentacled opening? | annelids | prokaryotes | sponges | cnidarians | D | Cnidarians have an incomplete digestive system with a single opening. The opening is surrounded by tentacles, which are covered with nematocyst cells and used to capture prey. Digestion takes place in the digestive cavity. Nutrients are absorbed and gases are exchanged through the cells lining this cavity. Fluid in the... | sciq |
231 | Answer the following multiple choice question by selecting the correct option.
Question: What term is not the same as energy, but means the energy per unit charge?
A: frequency
B: speed
C: voltage
D: mass
Answer (with only the letter, no other text): | Answer the following multiple choice question by selecting the correct option.
Context: The second equation is equivalent to the first. Voltage is not the same as energy. Voltage is the energy per unit charge. Thus a motorcycle battery and a car battery can both have the same voltage (more precisely, the same potentia... | What term is not the same as energy, but means the energy per unit charge? | frequency | speed | voltage | mass | C | The second equation is equivalent to the first. Voltage is not the same as energy. Voltage is the energy per unit charge. Thus a motorcycle battery and a car battery can both have the same voltage (more precisely, the same potential difference between battery terminals), yet one stores much more energy than the other s... | sciq |
232 | Answer the following multiple choice question by selecting the correct option.
Question: What specific part of the african violet is used to propagate other plants?
A: petals
B: leaves
C: spores
D: roots
Answer (with only the letter, no other text): | Answer the following multiple choice question by selecting the correct option.
Question: What specific part of the african violet is used to propagate other plants?
A: petals
B: leaves
C: spores
D: roots
Answer (with only the letter, no other text): | What specific part of the african violet is used to propagate other plants? | petals | leaves | spores | roots | B | null | sciq |
233 | Answer the following multiple choice question by selecting the correct option.
Question: What are fibers that depend on aerobic respiration called?
A: oxidative fibers
B: fragile fibers
C: hydrogen fibers
D: evaporative fibers
Answer (with only the letter, no other text): | Answer the following multiple choice question by selecting the correct option.
Question: What are fibers that depend on aerobic respiration called?
A: oxidative fibers
B: fragile fibers
C: hydrogen fibers
D: evaporative fibers
Answer (with only the letter, no other text): | What are fibers that depend on aerobic respiration called? | oxidative fibers | fragile fibers | hydrogen fibers | evaporative fibers | A | null | sciq |
234 | Answer the following multiple choice question by selecting the correct option.
Question: Which form of electromagnetic waves have more energy: low frequency wave or high frequency waves?
A: low frequency waves
B: high frequency waves
C: neither
D: the same
Answer (with only the letter, no other text): | Answer the following multiple choice question by selecting the correct option.
Context: The energy of electromagnetic waves depends on their frequency. Low-frequency waves have little energy and are normally harmless. High-frequency waves have a lot of energy and are potentially very harmful.
Question: Which form of ... | Which form of electromagnetic waves have more energy: low frequency wave or high frequency waves? | low frequency waves | high frequency waves | neither | the same | B | The energy of electromagnetic waves depends on their frequency. Low-frequency waves have little energy and are normally harmless. High-frequency waves have a lot of energy and are potentially very harmful. | sciq |
235 | Answer the following multiple choice question by selecting the correct option.
Question: Something that has all of the characteristics of life is considered to be what?
A: ecosystem
B: alive
C: molecule
D: organism
Answer (with only the letter, no other text): | Answer the following multiple choice question by selecting the correct option.
Context: There is not just one distinguishing feature that separates a living thing from a non-living thing. A cat moves but so does a car. A tree grows bigger, but so does a cloud. A cell has structure, but so does a crystal. Biologists de... | Something that has all of the characteristics of life is considered to be what? | ecosystem | alive | molecule | organism | B | There is not just one distinguishing feature that separates a living thing from a non-living thing. A cat moves but so does a car. A tree grows bigger, but so does a cloud. A cell has structure, but so does a crystal. Biologists define life by listing characteristics that living things share. Something that has all of ... | sciq |
236 | Answer the following multiple choice question by selecting the correct option.
Question: What do the letters in our blood types represent?
A: genomes
B: proteins
C: alleles
D: iron levels
Answer (with only the letter, no other text): | Answer the following multiple choice question by selecting the correct option.
Context: Another exception to Mendel's laws is a phenomenon called codominance . For example, our blood type shows codominance. Do you know what your blood type is? Are you A? O? AB? Those letters actually represent alleles. Unlike other tr... | What do the letters in our blood types represent? | genomes | proteins | alleles | iron levels | C | Another exception to Mendel's laws is a phenomenon called codominance . For example, our blood type shows codominance. Do you know what your blood type is? Are you A? O? AB? Those letters actually represent alleles. Unlike other traits, your blood type has three alleles, instead of two!. | sciq |
237 | Answer the following multiple choice question by selecting the correct option.
Question: The two stages of photosynthesis are the light reactions and what?
A: reproductive cycle
B: respiratory cycle
C: calvin cycle
D: digestive cycle
Answer (with only the letter, no other text): | Answer the following multiple choice question by selecting the correct option.
Context: The two stages of photosynthesis are the light reactions and the Calvin cycle. Do you see how the two stages are related?.
Question: The two stages of photosynthesis are the light reactions and what?
A: reproductive cycle
B: resp... | The two stages of photosynthesis are the light reactions and what? | reproductive cycle | respiratory cycle | calvin cycle | digestive cycle | C | The two stages of photosynthesis are the light reactions and the Calvin cycle. Do you see how the two stages are related?. | sciq |
238 | Answer the following multiple choice question by selecting the correct option.
Question: What do living things need to survive?
A: molecules
B: oxygen
C: nutrients
D: heat
Answer (with only the letter, no other text): | Answer the following multiple choice question by selecting the correct option.
Context: There are three main ocean zones based on distance from shore. They are the intertidal zone , neritic zone , and oceanic zone . Distance from shore influences how many nutrients are in the water. Why? Most nutrients are washed into... | What do living things need to survive? | molecules | oxygen | nutrients | heat | C | There are three main ocean zones based on distance from shore. They are the intertidal zone , neritic zone , and oceanic zone . Distance from shore influences how many nutrients are in the water. Why? Most nutrients are washed into ocean water from land. Therefore, water closer to shore tends to have more nutrients. Li... | sciq |
239 | Answer the following multiple choice question by selecting the correct option.
Question: The denser regions of the electron cloud are called what?
A: lattices
B: orbitals
C: cores
D: isotopes
Answer (with only the letter, no other text): | Answer the following multiple choice question by selecting the correct option.
Context: Some regions of the electron cloud are denser than others. The denser regions are areas where electrons are most likely to be. These regions are called orbitals . Each orbital has a maximum of just two electrons. Different energy l... | The denser regions of the electron cloud are called what? | lattices | orbitals | cores | isotopes | B | Some regions of the electron cloud are denser than others. The denser regions are areas where electrons are most likely to be. These regions are called orbitals . Each orbital has a maximum of just two electrons. Different energy levels in the cloud have different numbers of orbitals. Therefore, different energy levels... | sciq |
240 | Answer the following multiple choice question by selecting the correct option.
Question: In studying energy, what term do scientists use to refer to the matter and its environment involved in energy transfers?
A: ecosystem
B: system
C: molecule
D: world
Answer (with only the letter, no other text): | Answer the following multiple choice question by selecting the correct option.
Context: 6.3 The Laws of Thermodynamics In studying energy, scientists use the term “system” to refer to the matter and its environment involved in energy transfers. Everything outside of the system is called the surroundings. Single cells ... | In studying energy, what term do scientists use to refer to the matter and its environment involved in energy transfers? | ecosystem | system | molecule | world | B | 6.3 The Laws of Thermodynamics In studying energy, scientists use the term “system” to refer to the matter and its environment involved in energy transfers. Everything outside of the system is called the surroundings. Single cells are biological systems. Systems can be thought of as having a certain amount of order. It... | sciq |
241 | Answer the following multiple choice question by selecting the correct option.
Question: To measure what changes that occur in chemical reactions, chemists usually use a related thermodynamic quantity, calledenthalpy?
A: evaporation
B: ion exchange
C: energy
D: entropy
Answer (with only the letter, no other text): | Answer the following multiple choice question by selecting the correct option.
Context: (a) Initially, the system (a copper penny and concentrated nitric acid) is at atmospheric pressure. (b) When the penny is added to the nitric acid, the volume of NO2 gas that is formed causes the piston to move upward to maintain t... | To measure what changes that occur in chemical reactions, chemists usually use a related thermodynamic quantity, calledenthalpy? | evaporation | ion exchange | energy | entropy | C | (a) Initially, the system (a copper penny and concentrated nitric acid) is at atmospheric pressure. (b) When the penny is added to the nitric acid, the volume of NO2 gas that is formed causes the piston to move upward to maintain the system at atmospheric pressure. In doing so, the system is performing work on its surr... | sciq |
242 | Answer the following multiple choice question by selecting the correct option.
Question: A system in what state cannot spontaneously change, and therefore can do no work?
A: balance
B: stability
C: equality
D: equilibrium
Answer (with only the letter, no other text): | Answer the following multiple choice question by selecting the correct option.
Question: A system in what state cannot spontaneously change, and therefore can do no work?
A: balance
B: stability
C: equality
D: equilibrium
Answer (with only the letter, no other text): | A system in what state cannot spontaneously change, and therefore can do no work? | balance | stability | equality | equilibrium | D | null | sciq |
243 | Answer the following multiple choice question by selecting the correct option.
Question: What is a species that plays an especially important role in it's community called?
A: complement
B: keystone
C: Invasive
D: Leader
Answer (with only the letter, no other text): | Answer the following multiple choice question by selecting the correct option.
Context: Some predator species are known as keystone species. A keystone species is one that plays an especially important role in its community. Major changes in the numbers of a keystone species affect the populations of many other specie... | What is a species that plays an especially important role in it's community called? | complement | keystone | Invasive | Leader | B | Some predator species are known as keystone species. A keystone species is one that plays an especially important role in its community. Major changes in the numbers of a keystone species affect the populations of many other species in the community. For example, some sea star species are keystone species in coral reef... | sciq |
244 | Answer the following multiple choice question by selecting the correct option.
Question: What term that shows how fast a population is growing includes new members added to the population over a given period, as well as old members removed from the population?
A: emigration
B: birth rate
C: population density
D: grow... | Answer the following multiple choice question by selecting the correct option.
Context: The population growth rate is how fast a population is growing. The letter r stands for the growth rate. The growth rate equals the number of new members added to the population in a year for each 100 members already in the populat... | What term that shows how fast a population is growing includes new members added to the population over a given period, as well as old members removed from the population? | emigration | birth rate | population density | growth rate | D | The population growth rate is how fast a population is growing. The letter r stands for the growth rate. The growth rate equals the number of new members added to the population in a year for each 100 members already in the population. The growth rate includes new members added to the population and old members removed... | sciq |
245 | Answer the following multiple choice question by selecting the correct option.
Question: The rings of what planet can be easily seen from earth?
A: saturn
B: Neptune
C: jupiter
D: Venus
Answer (with only the letter, no other text): | Answer the following multiple choice question by selecting the correct option.
Context: All of the outer planets have numerous moons. They also have planetary rings made of dust and other small particles. Only the rings of Saturn can be easily seen from Earth.
Question: The rings of what planet can be easily seen fro... | The rings of what planet can be easily seen from earth? | saturn | Neptune | jupiter | Venus | A | All of the outer planets have numerous moons. They also have planetary rings made of dust and other small particles. Only the rings of Saturn can be easily seen from Earth. | sciq |
246 | Answer the following multiple choice question by selecting the correct option.
Question: What planet is a blue green color?
A: Mercury
B: sirius
C: uranus
D: Mars
Answer (with only the letter, no other text): | Answer the following multiple choice question by selecting the correct option.
Context: Uranus is a lot like Jupiter and Saturn. The planet is composed mainly of hydrogen and helium. There is a thick layer of gas on the outside. Further on the inside is liquid. But Uranus has a higher percentage of icy materials than ... | What planet is a blue green color? | Mercury | sirius | uranus | Mars | C | Uranus is a lot like Jupiter and Saturn. The planet is composed mainly of hydrogen and helium. There is a thick layer of gas on the outside. Further on the inside is liquid. But Uranus has a higher percentage of icy materials than Jupiter and Saturn. These materials include water, ammonia, and methane. Uranus is also d... | sciq |
247 | Answer the following multiple choice question by selecting the correct option.
Question: The simplest class of organic compounds is the what?
A: Phenols
B: gas
C: particles
D: hydrocarbons
Answer (with only the letter, no other text): | Answer the following multiple choice question by selecting the correct option.
Context: isolating the individual components, preservationists are better able to determine the condition of an object and those books and documents most in need of immediate protection. The simplest class of organic compounds is the hydroc... | The simplest class of organic compounds is the what? | Phenols | gas | particles | hydrocarbons | D | isolating the individual components, preservationists are better able to determine the condition of an object and those books and documents most in need of immediate protection. The simplest class of organic compounds is the hydrocarbons, which consist entirely of carbon and hydrogen. Petroleum and natural gas are comp... | sciq |
248 | Answer the following multiple choice question by selecting the correct option.
Question: Some meteorites are made of iron and nickel and are thought to be very similar to what part of the earth?
A: mantel
B: core
C: crust
D: shelf
Answer (with only the letter, no other text): | Answer the following multiple choice question by selecting the correct option.
Context: Scientists study meteorites to learn about Earth’s interior. Meteorites formed in the early solar system. These objects represent early solar system materials. Some meteorites are made of iron and nickel. They are thought to be ver... | Some meteorites are made of iron and nickel and are thought to be very similar to what part of the earth? | mantel | core | crust | shelf | B | Scientists study meteorites to learn about Earth’s interior. Meteorites formed in the early solar system. These objects represent early solar system materials. Some meteorites are made of iron and nickel. They are thought to be very similar to Earth's core ( Figure below ). An iron meteorite is the closest thing to a s... | sciq |
249 | Answer the following multiple choice question by selecting the correct option.
Question: Which pathway carries somatosensory information from the face, head, mouth, and nasal cavity?
A: dual pathway
B: cranial pathway
C: trigeminal pathway
D: posterior pathway
Answer (with only the letter, no other text): | Answer the following multiple choice question by selecting the correct option.
Context: The trigeminal pathway carries somatosensory information from the face, head, mouth, and nasal cavity. As with the previously discussed nerve tracts, the sensory pathways of the trigeminal pathway each involve three successive neur... | Which pathway carries somatosensory information from the face, head, mouth, and nasal cavity? | dual pathway | cranial pathway | trigeminal pathway | posterior pathway | C | The trigeminal pathway carries somatosensory information from the face, head, mouth, and nasal cavity. As with the previously discussed nerve tracts, the sensory pathways of the trigeminal pathway each involve three successive neurons. First, axons from the trigeminal ganglion enter the brain stem at the level of the p... | sciq |
250 | Answer the following multiple choice question by selecting the correct option.
Question: The amount of kinetic energy in a moving object depends directly on its mass and what else?
A: direction
B: volume
C: density
D: velocity
Answer (with only the letter, no other text): | Answer the following multiple choice question by selecting the correct option.
Context: The amount of kinetic energy in a moving object depends directly on its mass and velocity. An object with greater mass or greater velocity has more kinetic energy. You can calculate the kinetic energy of a moving object with this e... | The amount of kinetic energy in a moving object depends directly on its mass and what else? | direction | volume | density | velocity | D | The amount of kinetic energy in a moving object depends directly on its mass and velocity. An object with greater mass or greater velocity has more kinetic energy. You can calculate the kinetic energy of a moving object with this equation:. | sciq |
251 | Answer the following multiple choice question by selecting the correct option.
Question: Cycling, shoveling snow and cross-country skiing are examples of what kind of heart-strengthening activity?
A: metabolism
B: exercise
C: anaerobic
D: aerobic
Answer (with only the letter, no other text): | Answer the following multiple choice question by selecting the correct option.
Context: When done regularly, aerobic activities, such as cycling, make the heart stronger. Other aerobic activities include mowing lawn, shoveling snow and cross country skiing.
Question: Cycling, shoveling snow and cross-country skiing a... | Cycling, shoveling snow and cross-country skiing are examples of what kind of heart-strengthening activity? | metabolism | exercise | anaerobic | aerobic | D | When done regularly, aerobic activities, such as cycling, make the heart stronger. Other aerobic activities include mowing lawn, shoveling snow and cross country skiing. | sciq |
252 | Answer the following multiple choice question by selecting the correct option.
Question: What take the shape of their container, and are relatively easy to compress?
A: molecules
B: semi-fluids
C: gases
D: fluids
Answer (with only the letter, no other text): | Answer the following multiple choice question by selecting the correct option.
Context: The story is quite different for gases. Gases take the shape of their container, and they are relatively easy to compress. There are fewer gas particles per unit volume than for the same substance in the liquid or solid form. In fa... | What take the shape of their container, and are relatively easy to compress? | molecules | semi-fluids | gases | fluids | C | The story is quite different for gases. Gases take the shape of their container, and they are relatively easy to compress. There are fewer gas particles per unit volume than for the same substance in the liquid or solid form. In fact, the liquid form of a given material is generally several hundred times more dense tha... | sciq |
253 | Answer the following multiple choice question by selecting the correct option.
Question: What is moving air called?
A: clouds
B: steam
C: wind
D: humidity
Answer (with only the letter, no other text): | Answer the following multiple choice question by selecting the correct option.
Context: Moving air, like moving water, causes erosion. Moving air is called wind.
Question: What is moving air called?
A: clouds
B: steam
C: wind
D: humidity
Answer (with only the letter, no other text): | What is moving air called? | clouds | steam | wind | humidity | C | Moving air, like moving water, causes erosion. Moving air is called wind. | sciq |
254 | Answer the following multiple choice question by selecting the correct option.
Question: What property makes bone marrow cells ideal for gene therapy?
A: irreversible reproduction
B: Matching
C: lifelong reproduction
D: behavior reproduction
Answer (with only the letter, no other text): | Answer the following multiple choice question by selecting the correct option.
Question: What property makes bone marrow cells ideal for gene therapy?
A: irreversible reproduction
B: Matching
C: lifelong reproduction
D: behavior reproduction
Answer (with only the letter, no other text): | What property makes bone marrow cells ideal for gene therapy? | irreversible reproduction | Matching | lifelong reproduction | behavior reproduction | C | null | sciq |
255 | Answer the following multiple choice question by selecting the correct option.
Question: What is the name of the two metalloids in the carbon group called?
A: silicon and gold
B: titantium and copper
C: silicon and germanium
D: silver and gold
Answer (with only the letter, no other text): | Answer the following multiple choice question by selecting the correct option.
Context: Group 14 is called the carbon group. This group contains two metalloids: silicon and germanium. Carbon is a nonmetal, and the remaining elements in this group are metals.
Question: What is the name of the two metalloids in the car... | What is the name of the two metalloids in the carbon group called? | silicon and gold | titantium and copper | silicon and germanium | silver and gold | C | Group 14 is called the carbon group. This group contains two metalloids: silicon and germanium. Carbon is a nonmetal, and the remaining elements in this group are metals. | sciq |
256 | Answer the following multiple choice question by selecting the correct option.
Question: What is the name of the zone where water is deeper than 200 meters called?
A: aphotic zone
B: eccentric zone
C: transition zone
D: euphotic zone
Answer (with only the letter, no other text): | Answer the following multiple choice question by selecting the correct option.
Context: The aphotic zone is water deeper than 200 meters. This is where too little sunlight penetrates for photosynthesis to occur. As a result, producers must make "food" by chemosynthesis , or the food must drift down from the water abov... | What is the name of the zone where water is deeper than 200 meters called? | aphotic zone | eccentric zone | transition zone | euphotic zone | A | The aphotic zone is water deeper than 200 meters. This is where too little sunlight penetrates for photosynthesis to occur. As a result, producers must make "food" by chemosynthesis , or the food must drift down from the water above. | sciq |
257 | Answer the following multiple choice question by selecting the correct option.
Question: Diagnosing and treating cancer is a beneficial use of what potentially dangerous energy?
A: mechanical
B: solar
C: radiation
D: thermal
Answer (with only the letter, no other text): | Answer the following multiple choice question by selecting the correct option.
Context: Radiation has several important uses, including diagnosing and treating cancer.
Question: Diagnosing and treating cancer is a beneficial use of what potentially dangerous energy?
A: mechanical
B: solar
C: radiation
D: thermal
An... | Diagnosing and treating cancer is a beneficial use of what potentially dangerous energy? | mechanical | solar | radiation | thermal | C | Radiation has several important uses, including diagnosing and treating cancer. | sciq |
258 | Answer the following multiple choice question by selecting the correct option.
Question: Many adults and some children suffer from a deficiency of lactase. these individuals are said to be lactose intolerant because they cannot digest the lactose found in what?
A: fruit
B: meat
C: peanuts
D: milk
Answer (with only t... | Answer the following multiple choice question by selecting the correct option.
Context: Many adults and some children suffer from a deficiency of lactase. These individuals are said to be lactose intolerant because they cannot digest the lactose found in milk. A more serious problem is the genetic disease galactosemia... | Many adults and some children suffer from a deficiency of lactase. these individuals are said to be lactose intolerant because they cannot digest the lactose found in what? | fruit | meat | peanuts | milk | D | Many adults and some children suffer from a deficiency of lactase. These individuals are said to be lactose intolerant because they cannot digest the lactose found in milk. A more serious problem is the genetic disease galactosemia, which results from the absence of an enzyme needed to convert galactose to glucose. Cer... | sciq |
259 | Answer the following multiple choice question by selecting the correct option.
Question: Three-prong plugs, circuit breakers, and gfci outlets are safety features that recognize the danger of what?
A: magnetism
B: electricity
C: heat
D: gravity
Answer (with only the letter, no other text): | Answer the following multiple choice question by selecting the correct option.
Context: Because electricity can be so dangerous, safety features are built into modern electric circuits and devices. They include three-prong plugs, circuit breakers, and GFCI outlets. You can read about these three safety features in the... | Three-prong plugs, circuit breakers, and gfci outlets are safety features that recognize the danger of what? | magnetism | electricity | heat | gravity | B | Because electricity can be so dangerous, safety features are built into modern electric circuits and devices. They include three-prong plugs, circuit breakers, and GFCI outlets. You can read about these three safety features in the Figure below . You can learn more about electric safety features in the home by watching... | sciq |
260 | Answer the following multiple choice question by selecting the correct option.
Question: Catabolic reactions break down large organic molecules into smaller molecules, releasing the energy contained in what?
A: molecular bonds
B: liquid bonds
C: chemical bonds
D: crystals bonds
Answer (with only the letter, no other... | Answer the following multiple choice question by selecting the correct option.
Context: Catabolic Reactions Catabolic reactions break down large organic molecules into smaller molecules, releasing the energy contained in the chemical bonds. These energy releases (conversions) are not 100 percent efficient. The amount ... | Catabolic reactions break down large organic molecules into smaller molecules, releasing the energy contained in what? | molecular bonds | liquid bonds | chemical bonds | crystals bonds | C | Catabolic Reactions Catabolic reactions break down large organic molecules into smaller molecules, releasing the energy contained in the chemical bonds. These energy releases (conversions) are not 100 percent efficient. The amount of energy released is less than the total amount contained in the molecule. Approximately... | sciq |
261 | Answer the following multiple choice question by selecting the correct option.
Question: In qualitative analysis, reagents are added to an unknown chemical mixture in order to induce what?
A: sunlight
B: erosion
C: motion
D: precipitation
Answer (with only the letter, no other text): | Answer the following multiple choice question by selecting the correct option.
Context: Selective precipitation can also be used in qualitative analysis. In this method, reagents are added to an unknown chemical mixture in order to induce precipitation. Certain reagents cause specific ions to precipitate out; therefor... | In qualitative analysis, reagents are added to an unknown chemical mixture in order to induce what? | sunlight | erosion | motion | precipitation | D | Selective precipitation can also be used in qualitative analysis. In this method, reagents are added to an unknown chemical mixture in order to induce precipitation. Certain reagents cause specific ions to precipitate out; therefore, the addition of the reagent can be used to determine whether the ion is present in the... | sciq |
262 | Answer the following multiple choice question by selecting the correct option.
Question: While climate change in earth history was due to natural processes, what is primarily to blame for recent global warming?
A: volcanos
B: wars
C: human actions
D: factories
Answer (with only the letter, no other text): | Answer the following multiple choice question by selecting the correct option.
Context: Climate change in Earth history was due to natural processes. Recent global warming is due mainly to human actions. The burning of fossil fuels releases greenhouse gases into the air. This creates greater greenhouse effect and glob... | While climate change in earth history was due to natural processes, what is primarily to blame for recent global warming? | volcanos | wars | human actions | factories | C | Climate change in Earth history was due to natural processes. Recent global warming is due mainly to human actions. The burning of fossil fuels releases greenhouse gases into the air. This creates greater greenhouse effect and global warming. | sciq |
263 | Answer the following multiple choice question by selecting the correct option.
Question: What is the simplest life cycle?
A: binary life cycle
B: metamorphic cycle
C: diploid life cycle
D: haploid life cycle
Answer (with only the letter, no other text): | Answer the following multiple choice question by selecting the correct option.
Context: The haploid life cycle ( Figure below ) is the simplest life cycle. It is found in many single-celled organisms. Organisms with a haploid life cycle spend the majority of their lives as haploid gametes. When the haploid gametes fus... | What is the simplest life cycle? | binary life cycle | metamorphic cycle | diploid life cycle | haploid life cycle | D | The haploid life cycle ( Figure below ) is the simplest life cycle. It is found in many single-celled organisms. Organisms with a haploid life cycle spend the majority of their lives as haploid gametes. When the haploid gametes fuse, they form a diploid zygote. It quickly undergoes meiosis to produce more haploid gamet... | sciq |
264 | Answer the following multiple choice question by selecting the correct option.
Question: What keeps the moon orbiting earth?
A: axial tilt
B: Coriolis effect
C: gravity
D: the Sun
Answer (with only the letter, no other text): | Answer the following multiple choice question by selecting the correct option.
Context: Gravity keeps the Moon orbiting Earth. Gravity keeps the planets orbiting the Sun.
Question: What keeps the moon orbiting earth?
A: axial tilt
B: Coriolis effect
C: gravity
D: the Sun
Answer (with only the letter, no other text)... | What keeps the moon orbiting earth? | axial tilt | Coriolis effect | gravity | the Sun | C | Gravity keeps the Moon orbiting Earth. Gravity keeps the planets orbiting the Sun. | sciq |
265 | Answer the following multiple choice question by selecting the correct option.
Question: What are formed by the attraction between oppositely charged ions?
A: soluble bonds
B: magnetic bonds
C: ionic bonds
D: inept bonds
Answer (with only the letter, no other text): | Answer the following multiple choice question by selecting the correct option.
Context: Ionic bonds are formed by the attraction between oppositely charged ions.
Question: What are formed by the attraction between oppositely charged ions?
A: soluble bonds
B: magnetic bonds
C: ionic bonds
D: inept bonds
Answer (with... | What are formed by the attraction between oppositely charged ions? | soluble bonds | magnetic bonds | ionic bonds | inept bonds | C | Ionic bonds are formed by the attraction between oppositely charged ions. | sciq |
266 | Answer the following multiple choice question by selecting the correct option.
Question: What produces hormones that directly regulate body processes?
A: hippocampus
B: lymph glands
C: hypothalamus
D: pancreas
Answer (with only the letter, no other text): | Answer the following multiple choice question by selecting the correct option.
Context: The hypothalamus also produces hormones that directly regulate body processes. For example, it produces antidiuretic hormone. This hormone travels to the kidneys and stimulates them to conserve water by producing more concentrated ... | What produces hormones that directly regulate body processes? | hippocampus | lymph glands | hypothalamus | pancreas | C | The hypothalamus also produces hormones that directly regulate body processes. For example, it produces antidiuretic hormone. This hormone travels to the kidneys and stimulates them to conserve water by producing more concentrated urine. | sciq |
267 | Answer the following multiple choice question by selecting the correct option.
Question: Comparing anatomy, and characterizing the similarities and differences, provides evidence of what process?
A: emergence
B: devolution
C: regression
D: evolution
Answer (with only the letter, no other text): | Answer the following multiple choice question by selecting the correct option.
Context: Take a close look at this gorilla hand. The similarities to a human hand are remarkable. Comparing anatomy, and characterizing the similarities and differences, provides evidence of evolution.
Question: Comparing anatomy, and char... | Comparing anatomy, and characterizing the similarities and differences, provides evidence of what process? | emergence | devolution | regression | evolution | D | Take a close look at this gorilla hand. The similarities to a human hand are remarkable. Comparing anatomy, and characterizing the similarities and differences, provides evidence of evolution. | sciq |
268 | Answer the following multiple choice question by selecting the correct option.
Question: What is the second most abundant element in the earth's crust?
A: nitrogen
B: helium
C: silicon
D: carbon
Answer (with only the letter, no other text): | Answer the following multiple choice question by selecting the correct option.
Context: What is this intricate orb? It is the greatly magnified skeleton of single-celled ocean organisms call radiolarian. The skeleton is made of an element that is extremely common on Earth. In fact, it is the second most abundant eleme... | What is the second most abundant element in the earth's crust? | nitrogen | helium | silicon | carbon | C | What is this intricate orb? It is the greatly magnified skeleton of single-celled ocean organisms call radiolarian. The skeleton is made of an element that is extremely common on Earth. In fact, it is the second most abundant element in Earth’s crust. It is also one of the most common elements in the entire universe. W... | sciq |
269 | Answer the following multiple choice question by selecting the correct option.
Question: Which kind of genetics approach involves mutating or deleting genes provides researchers with clues about gene function?
A: possible genetics
B: impossible genetics
C: reverse genetics
D: inverse genetics
Answer (with only the l... | Answer the following multiple choice question by selecting the correct option.
Context: Watch this short video (http://openstaxcollege. org/l/transgenic) explaining how scientists create a transgenic animal. Although the classic methods of studying the function of genes began with a given phenotype and determined the ... | Which kind of genetics approach involves mutating or deleting genes provides researchers with clues about gene function? | possible genetics | impossible genetics | reverse genetics | inverse genetics | C | Watch this short video (http://openstaxcollege. org/l/transgenic) explaining how scientists create a transgenic animal. Although the classic methods of studying the function of genes began with a given phenotype and determined the genetic basis of that phenotype, modern techniques allow researchers to start at the DNA ... | sciq |
270 | Answer the following multiple choice question by selecting the correct option.
Question: More than half of all known organisms are what?
A: enzymes
B: spiders
C: mammals
D: insects
Answer (with only the letter, no other text): | Answer the following multiple choice question by selecting the correct option.
Context: The majority of arthropods are insects (Class Insecta). In fact, more than half of all known organisms are insects. There may be more than 10 million insect species in the world, although most of them have not yet been identified. ... | More than half of all known organisms are what? | enzymes | spiders | mammals | insects | D | The majority of arthropods are insects (Class Insecta). In fact, more than half of all known organisms are insects. There may be more than 10 million insect species in the world, although most of them have not yet been identified. In terms of their numbers and diversity, insects clearly are the dominant animals in the ... | sciq |
271 | Answer the following multiple choice question by selecting the correct option.
Question: For what purpose does liver use the excess carbohydrate?
A: process sugar
B: dilute carbohydrates
C: convert starches
D: to synthesize glycogen
Answer (with only the letter, no other text): | Answer the following multiple choice question by selecting the correct option.
Context: Obesity With obesity at high rates in the United States, there is a public health focus on reducing obesity and associated health risks, which include diabetes, colon and breast cancer, and cardiovascular disease. How does the food... | For what purpose does liver use the excess carbohydrate? | process sugar | dilute carbohydrates | convert starches | to synthesize glycogen | D | Obesity With obesity at high rates in the United States, there is a public health focus on reducing obesity and associated health risks, which include diabetes, colon and breast cancer, and cardiovascular disease. How does the food consumed contribute to obesity? Fatty foods are calorie-dense, meaning that they have mo... | sciq |
272 | Answer the following multiple choice question by selecting the correct option.
Question: Saturn is made mostly of helium and what else?
A: carbon
B: hydrogen
C: nitrogen
D: hydrogen
Answer (with only the letter, no other text): | Answer the following multiple choice question by selecting the correct option.
Context: Saturn’s composition is similar to Jupiter's. The planet is made mostly of hydrogen and helium. These elements are gases in the outer layers and liquids in the deeper layers. Saturn may also have a small solid core. Saturn's upper ... | Saturn is made mostly of helium and what else? | carbon | hydrogen | nitrogen | hydrogen | B | Saturn’s composition is similar to Jupiter's. The planet is made mostly of hydrogen and helium. These elements are gases in the outer layers and liquids in the deeper layers. Saturn may also have a small solid core. Saturn's upper atmosphere has clouds in bands of different colors. These clouds rotate rapidly around th... | sciq |
273 | Answer the following multiple choice question by selecting the correct option.
Question: What are alkenes organic compounds that contain one or more double or triple bonds between carbon atoms described as?
A: unsaturated
B: saturated
C: strong
D: insulated
Answer (with only the letter, no other text): | Answer the following multiple choice question by selecting the correct option.
Context: Alkenes Organic compounds that contain one or more double or triple bonds between carbon atoms are described as unsaturated. You have likely heard of unsaturated fats. These are complex organic molecules with long chains of carbon ... | What are alkenes organic compounds that contain one or more double or triple bonds between carbon atoms described as? | unsaturated | saturated | strong | insulated | A | Alkenes Organic compounds that contain one or more double or triple bonds between carbon atoms are described as unsaturated. You have likely heard of unsaturated fats. These are complex organic molecules with long chains of carbon atoms, which contain at least one double bond between carbon atoms. Unsaturated hydrocarb... | sciq |
274 | Answer the following multiple choice question by selecting the correct option.
Question: Electrons in covalent compounds are shared between the two atoms, unlike the case in what type of bonds?
A: weak bonds
B: horizontal bonds
C: ionic bonds
D: soluble bonds
Answer (with only the letter, no other text): | Answer the following multiple choice question by selecting the correct option.
Context: The two materials do have at least one thing in common. The atoms in the materials are held together by covalent bonds. These bonds consist of electrons shared between two or more atoms. Unlike ionic bonds, where electrons are eith... | Electrons in covalent compounds are shared between the two atoms, unlike the case in what type of bonds? | weak bonds | horizontal bonds | ionic bonds | soluble bonds | C | The two materials do have at least one thing in common. The atoms in the materials are held together by covalent bonds. These bonds consist of electrons shared between two or more atoms. Unlike ionic bonds, where electrons are either lost or gained by an atom to form charged ions, electrons in covalent compounds are sh... | sciq |
275 | Answer the following multiple choice question by selecting the correct option.
Question: What is the resistance of a liquid to flow called?
A: turbulence
B: elasticity
C: viscosity
D: permeability
Answer (with only the letter, no other text): | Answer the following multiple choice question by selecting the correct option.
Context: Viscosity (η) is the resistance of a liquid to flow. Some liquids, such as gasoline, ethanol, and water, flow very readily and hence have a low viscosity. Others, such as motor oil, molasses, and maple syrup, flow very slowly and h... | What is the resistance of a liquid to flow called? | turbulence | elasticity | viscosity | permeability | C | Viscosity (η) is the resistance of a liquid to flow. Some liquids, such as gasoline, ethanol, and water, flow very readily and hence have a low viscosity. Others, such as motor oil, molasses, and maple syrup, flow very slowly and have a high viscosity. The two most common methods for evaluating the viscosity of a liqui... | sciq |
276 | Answer the following multiple choice question by selecting the correct option.
Question: The mass of atoms is based on the number of protons and neutrons in what?
A: nucleus
B: molecules
C: electrons
D: components
Answer (with only the letter, no other text): | Answer the following multiple choice question by selecting the correct option.
Context: Atoms have a mass that is based largely on the number of protons and neutrons in their nucleus.
Question: The mass of atoms is based on the number of protons and neutrons in what?
A: nucleus
B: molecules
C: electrons
D: component... | The mass of atoms is based on the number of protons and neutrons in what? | nucleus | molecules | electrons | components | A | Atoms have a mass that is based largely on the number of protons and neutrons in their nucleus. | sciq |
277 | Answer the following multiple choice question by selecting the correct option.
Question: Where do polychaete worms live?
A: in coral reefs
B: attached to marine life
C: in tide pools
D: the ocean floor
Answer (with only the letter, no other text): | Answer the following multiple choice question by selecting the correct option.
Context: Annelids called polychaete worms live on the ocean floor. They may be filter feeders, predators, or scavengers. The amazing feather duster worm in Figure below is a polychaete that has a fan-like crown of tentacles for filter feedi... | Where do polychaete worms live? | in coral reefs | attached to marine life | in tide pools | the ocean floor | D | Annelids called polychaete worms live on the ocean floor. They may be filter feeders, predators, or scavengers. The amazing feather duster worm in Figure below is a polychaete that has a fan-like crown of tentacles for filter feeding. | sciq |
278 | Answer the following multiple choice question by selecting the correct option.
Question: What is the study of how and why plants and animals live where they do?
A: geomorphology
B: biogeography
C: heredity
D: lithography
Answer (with only the letter, no other text): | Answer the following multiple choice question by selecting the correct option.
Context: Biogeography is the study of how and why plants and animals live where they do. It provides more evidence for evolution. Let’s consider the camel family as an example.
Question: What is the study of how and why plants and animals ... | What is the study of how and why plants and animals live where they do? | geomorphology | biogeography | heredity | lithography | B | Biogeography is the study of how and why plants and animals live where they do. It provides more evidence for evolution. Let’s consider the camel family as an example. | sciq |
279 | Answer the following multiple choice question by selecting the correct option.
Question: Muscles that position the pectoral girdle are located either on the anterior thorax or on this?
A: inferred thorax
B: posterior thorax
C: posterior thorax
D: analogous thorax
Answer (with only the letter, no other text): | Answer the following multiple choice question by selecting the correct option.
Context: Muscles That Position the Pectoral Girdle Muscles that position the pectoral girdle are located either on the anterior thorax or on the posterior thorax (Figure 11.22 and Table 11.8). The anterior muscles include the subclavius, pe... | Muscles that position the pectoral girdle are located either on the anterior thorax or on this? | inferred thorax | posterior thorax | posterior thorax | analogous thorax | B | Muscles That Position the Pectoral Girdle Muscles that position the pectoral girdle are located either on the anterior thorax or on the posterior thorax (Figure 11.22 and Table 11.8). The anterior muscles include the subclavius, pectoralis minor, and serratus anterior. The posterior muscles include the trapezius, rhomb... | sciq |
280 | Answer the following multiple choice question by selecting the correct option.
Question: What are the two major types of seed plants called?
A: perennials and annuals
B: deciduous and evergreen
C: gymnosperms and angiosperms
D: flowers and fruits
Answer (with only the letter, no other text): | Answer the following multiple choice question by selecting the correct option.
Context: The two major types of seed plants are the gymnosperms (seeds in cones) and angiosperms (seeds in ovaries of flowers). Figure below shows how the seeds of gymnosperms and angiosperms differ. Do you see the main difference between t... | What are the two major types of seed plants called? | perennials and annuals | deciduous and evergreen | gymnosperms and angiosperms | flowers and fruits | C | The two major types of seed plants are the gymnosperms (seeds in cones) and angiosperms (seeds in ovaries of flowers). Figure below shows how the seeds of gymnosperms and angiosperms differ. Do you see the main difference between the two seeds? The angiosperm seed is surrounded by an ovary . | sciq |
281 | Answer the following multiple choice question by selecting the correct option.
Question: What do we call the energy-rich product of photosynthesis?
A: chloride
B: insulin
C: sugar
D: glucose
Answer (with only the letter, no other text): | Answer the following multiple choice question by selecting the correct option.
Context: Glucose is the energy-rich product of photosynthesis, a universal food for life. It is also the primary form in which your bloodstream delivers energy to every cell in your body.
Question: What do we call the energy-rich product o... | What do we call the energy-rich product of photosynthesis? | chloride | insulin | sugar | glucose | D | Glucose is the energy-rich product of photosynthesis, a universal food for life. It is also the primary form in which your bloodstream delivers energy to every cell in your body. | sciq |
282 | Answer the following multiple choice question by selecting the correct option.
Question: How is oxygen transferred into the bloodstream?
A: brain diffusion
B: simple diffusion
C: hard diffusion
D: mean diffusion
Answer (with only the letter, no other text): | Answer the following multiple choice question by selecting the correct option.
Context: The oxygen enters the bloodstream from the alveoli , tiny sacs in the lungs where gas exchange takes place ( Figure below ). The transfer of oxygen into the blood is through simple diffusion.
Question: How is oxygen transferred in... | How is oxygen transferred into the bloodstream? | brain diffusion | simple diffusion | hard diffusion | mean diffusion | B | The oxygen enters the bloodstream from the alveoli , tiny sacs in the lungs where gas exchange takes place ( Figure below ). The transfer of oxygen into the blood is through simple diffusion. | sciq |
283 | Answer the following multiple choice question by selecting the correct option.
Question: Ringworm and athlete's foot are human diseases caused by what simple organisms?
A: bacteria
B: fungi
C: insects
D: viruses
Answer (with only the letter, no other text): | Answer the following multiple choice question by selecting the correct option.
Context: Fungi are simple eukaryotic organisms that consist of one or more cells. They include mushrooms and yeasts. Human diseases caused by fungi include ringworm and athlete’s foot. Both are skin diseases that are not usually serious. A ... | Ringworm and athlete's foot are human diseases caused by what simple organisms? | bacteria | fungi | insects | viruses | B | Fungi are simple eukaryotic organisms that consist of one or more cells. They include mushrooms and yeasts. Human diseases caused by fungi include ringworm and athlete’s foot. Both are skin diseases that are not usually serious. A ringworm infection is pictured below ( Figure below ). A more serious fungus disease is h... | sciq |
284 | Answer the following multiple choice question by selecting the correct option.
Question: What is the measure of the change in the velocity of a moving object called?
A: pressurization
B: acceleration
C: compression
D: transmission
Answer (with only the letter, no other text): | Answer the following multiple choice question by selecting the correct option.
Context: A car’s gas pedal, like the one in Figure below , is sometimes called the accelerator. That’s because it controls the acceleration of the car. Pressing down on the gas pedal gives the car more gas and causes the car to speed up. Le... | What is the measure of the change in the velocity of a moving object called? | pressurization | acceleration | compression | transmission | B | A car’s gas pedal, like the one in Figure below , is sometimes called the accelerator. That’s because it controls the acceleration of the car. Pressing down on the gas pedal gives the car more gas and causes the car to speed up. Letting up on the gas pedal gives the car less gas and causes the car to slow down. Wheneve... | sciq |
285 | Answer the following multiple choice question by selecting the correct option.
Question: What is the usual treatment for acute bronchitis?
A: pesticides
B: surgery
C: physical therapy
D: antibiotics
Answer (with only the letter, no other text): | Answer the following multiple choice question by selecting the correct option.
Context: Bronchitis is an inflammation of the bronchi, the air passages that conduct air into the lungs. The bronchi become red and swollen with infection. Acute bronchitis is usually caused by viruses or bacteria, and may last several days... | What is the usual treatment for acute bronchitis? | pesticides | surgery | physical therapy | antibiotics | D | Bronchitis is an inflammation of the bronchi, the air passages that conduct air into the lungs. The bronchi become red and swollen with infection. Acute bronchitis is usually caused by viruses or bacteria, and may last several days or weeks. It is characterized by a cough that produces phlegm, or mucus. Symptoms includ... | sciq |
286 | Answer the following multiple choice question by selecting the correct option.
Question: What are generally divided into prosimian and non-prosimian?
A: carnivores
B: primates
C: insects
D: rodents
Answer (with only the letter, no other text): | Answer the following multiple choice question by selecting the correct option.
Context: Primates are generally divided into prosimian and non-prosimian primates.
Question: What are generally divided into prosimian and non-prosimian?
A: carnivores
B: primates
C: insects
D: rodents
Answer (with only the letter, no ot... | What are generally divided into prosimian and non-prosimian? | carnivores | primates | insects | rodents | B | Primates are generally divided into prosimian and non-prosimian primates. | sciq |
287 | Answer the following multiple choice question by selecting the correct option.
Question: The creation and destruction of oceanic crust is the reason what moves?
A: animals
B: planets
C: oceans
D: continents
Answer (with only the letter, no other text): | Answer the following multiple choice question by selecting the correct option.
Context: In some places, the oceanic crust comes up to a continent. The moving crust pushes that continent away from the ridge axis as well. If the moving oceanic crust reaches a deep sea trench, the crust sinks into the mantle. The creatio... | The creation and destruction of oceanic crust is the reason what moves? | animals | planets | oceans | continents | D | In some places, the oceanic crust comes up to a continent. The moving crust pushes that continent away from the ridge axis as well. If the moving oceanic crust reaches a deep sea trench, the crust sinks into the mantle. The creation and destruction of oceanic crust is the reason that continents move. | sciq |
288 | Answer the following multiple choice question by selecting the correct option.
Question: What is the concept by which two species within the same area to coexist by adapting by developing different specializations?
A: character concept
B: feature displacement
C: character displacement
D: character development
Answer... | Answer the following multiple choice question by selecting the correct option.
Context: Looking at different types of competition, ecologists developed the competitive exclusion principle . The principle states that species less suited to compete for resources will either adapt, move from the area, or die out. In orde... | What is the concept by which two species within the same area to coexist by adapting by developing different specializations? | character concept | feature displacement | character displacement | character development | C | Looking at different types of competition, ecologists developed the competitive exclusion principle . The principle states that species less suited to compete for resources will either adapt, move from the area, or die out. In order for two species within the same area to coexist, they may adapt by developing different... | sciq |
289 | Answer the following multiple choice question by selecting the correct option.
Question: A turbine that spins a generator will produce?
A: solar energy
B: magnetic fields
C: electricity
D: light
Answer (with only the letter, no other text): | Answer the following multiple choice question by selecting the correct option.
Context: You can follow the operation of an electricity-generating fission reactor in the image above. The reactor core is submerged in a pool of water. The heat from the fission reaction heats the water, which is pumped into a heat exchang... | A turbine that spins a generator will produce? | solar energy | magnetic fields | electricity | light | C | You can follow the operation of an electricity-generating fission reactor in the image above. The reactor core is submerged in a pool of water. The heat from the fission reaction heats the water, which is pumped into a heat exchange container. There the heated water boils the water in the heat exchanger. The produced s... | sciq |
290 | Answer the following multiple choice question by selecting the correct option.
Question: Meiosis in the sporophyte produces haploid cells called what?
A: ions
B: seeds
C: fibers
D: spores
Answer (with only the letter, no other text): | Answer the following multiple choice question by selecting the correct option.
Question: Meiosis in the sporophyte produces haploid cells called what?
A: ions
B: seeds
C: fibers
D: spores
Answer (with only the letter, no other text): | Meiosis in the sporophyte produces haploid cells called what? | ions | seeds | fibers | spores | D | null | sciq |
291 | Answer the following multiple choice question by selecting the correct option.
Question: In this type of reaction, an element replaces another element in a compound, and the element is in any state of matter but is not an ion?
A: single-replacement reaction
B: double-replacement reaction
C: polar reaction
D: replicat... | Answer the following multiple choice question by selecting the correct option.
Context: A single-replacement reaction is one in which an element replaces another element in a compound. An element is in either the solid, liquid, or gas state and is not an ion. The example below shows the reaction of solid magnesium met... | In this type of reaction, an element replaces another element in a compound, and the element is in any state of matter but is not an ion? | single-replacement reaction | double-replacement reaction | polar reaction | replication reaction | A | A single-replacement reaction is one in which an element replaces another element in a compound. An element is in either the solid, liquid, or gas state and is not an ion. The example below shows the reaction of solid magnesium metal with aqueous silver nitrate to form aqueous magnesium nitrate and silver metal. | sciq |
292 | Answer the following multiple choice question by selecting the correct option.
Question: What are the two distinct types of cells found in the animal kingdom?
A: bacteria and eukaryotes
B: DNA and Eukaryotes
C: prokaryotes and eukaryotes
D: chromosomes and eukaryotes
Answer (with only the letter, no other text): | Answer the following multiple choice question by selecting the correct option.
Question: What are the two distinct types of cells found in the animal kingdom?
A: bacteria and eukaryotes
B: DNA and Eukaryotes
C: prokaryotes and eukaryotes
D: chromosomes and eukaryotes
Answer (with only the letter, no other text): | What are the two distinct types of cells found in the animal kingdom? | bacteria and eukaryotes | DNA and Eukaryotes | prokaryotes and eukaryotes | chromosomes and eukaryotes | C | null | sciq |
293 | Answer the following multiple choice question by selecting the correct option.
Question: What category of elements are chacterized by their ability to reflect light, called luster, their high electrical and thermal conductivity, their high heat capacity, and their malleability and ductility?
A: nonmetals
B: noble gas... | Answer the following multiple choice question by selecting the correct option.
Context: Metallic Solids Metals are characterized by their ability to reflect light, called luster, their high electrical and thermal conductivity, their high heat capacity, and their malleability and ductility. Every lattice point in a pur... | What category of elements are chacterized by their ability to reflect light, called luster, their high electrical and thermal conductivity, their high heat capacity, and their malleability and ductility? | nonmetals | noble gases | halogens | metals | D | Metallic Solids Metals are characterized by their ability to reflect light, called luster, their high electrical and thermal conductivity, their high heat capacity, and their malleability and ductility. Every lattice point in a pure metallic element is occupied by an atom of the same metal. The packing efficiency in me... | sciq |
294 | Answer the following multiple choice question by selecting the correct option.
Question: Angiosperms are also known as what?
A: dead plants
B: flowering plants
C: uncommon plants
D: dry plants
Answer (with only the letter, no other text): | Answer the following multiple choice question by selecting the correct option.
Context: Introduction Plants are as essential to human existence as land, water, and air. Without plants, our day-to-day lives would be impossible because without oxygen from photosynthesis, aerobic life cannot be sustained. From providing ... | Angiosperms are also known as what? | dead plants | flowering plants | uncommon plants | dry plants | B | Introduction Plants are as essential to human existence as land, water, and air. Without plants, our day-to-day lives would be impossible because without oxygen from photosynthesis, aerobic life cannot be sustained. From providing food and shelter to serving as a source of medicines, oils, perfumes, and industrial prod... | sciq |
295 | Answer the following multiple choice question by selecting the correct option.
Question: An estimated 100 trillion of these live in the gut of an average person?
A: viruses
B: algae
C: bacteria
D: pathogens
Answer (with only the letter, no other text): | Answer the following multiple choice question by selecting the correct option.
Context: It is estimated that 100 trillion bacteria live in the gut. This is more than the human cells that make up you. It has also been estimated that there are more bacteria in your mouth than people on the planet. There are over 7 billi... | An estimated 100 trillion of these live in the gut of an average person? | viruses | algae | bacteria | pathogens | C | It is estimated that 100 trillion bacteria live in the gut. This is more than the human cells that make up you. It has also been estimated that there are more bacteria in your mouth than people on the planet. There are over 7 billion people on the planet. | sciq |
296 | Answer the following multiple choice question by selecting the correct option.
Question: The ability to regulate what, which is possessed by mammals, was an advantage as earth’s climate went through sudden and dramatic changes?
A: mutations
B: body temperature
C: reflex behaviors
D: hair growth
Answer (with only the... | Answer the following multiple choice question by selecting the correct option.
Context: Mammals have the ability to regulate body temperature. This is an advantage, as Earth’s climate went through sudden and dramatic changes. Mastodons, saber tooth tigers, hoofed mammals, whales, primates and eventually humans all liv... | The ability to regulate what, which is possessed by mammals, was an advantage as earth’s climate went through sudden and dramatic changes? | mutations | body temperature | reflex behaviors | hair growth | B | Mammals have the ability to regulate body temperature. This is an advantage, as Earth’s climate went through sudden and dramatic changes. Mastodons, saber tooth tigers, hoofed mammals, whales, primates and eventually humans all lived during the Cenozoic Era ( Figure below ). | sciq |
297 | Answer the following multiple choice question by selecting the correct option.
Question: What is the term for very large arrays of tandemly repeating, non-coding dna?
A: addition dna
B: models dna
C: recombinant dna
D: satellite dna
Answer (with only the letter, no other text): | Answer the following multiple choice question by selecting the correct option.
Context: The majority of the human genome is non-coding sequence. These sequences include regulatory sequences, and DNA with unknown functions. These sequences include tandem repeat elements known as satellite DNA , and transposons. Satelli... | What is the term for very large arrays of tandemly repeating, non-coding dna? | addition dna | models dna | recombinant dna | satellite dna | D | The majority of the human genome is non-coding sequence. These sequences include regulatory sequences, and DNA with unknown functions. These sequences include tandem repeat elements known as satellite DNA , and transposons. Satellite DNA consists of very large arrays of tandemly repeating, non-coding DNA. The repeating... | sciq |
298 | Answer the following multiple choice question by selecting the correct option.
Question: What kind of map can show the features of the bottom of a body of water?
A: country
B: topographic
C: bathymetric
D: basic
Answer (with only the letter, no other text): | Answer the following multiple choice question by selecting the correct option.
Context: Oceanographers use bathymetric maps to show the features of the bottom of a body of water.
Question: What kind of map can show the features of the bottom of a body of water?
A: country
B: topographic
C: bathymetric
D: basic
Answ... | What kind of map can show the features of the bottom of a body of water? | country | topographic | bathymetric | basic | C | Oceanographers use bathymetric maps to show the features of the bottom of a body of water. | sciq |
299 | Answer the following multiple choice question by selecting the correct option.
Question: What evolved, adapted response to resource availability is the long-range seasonal movement of animals?
A: regulating
B: migration
C: changing
D: Stagnation
Answer (with only the letter, no other text): | Answer the following multiple choice question by selecting the correct option.
Context: Migration Migration is the long-range seasonal movement of animals. It is an evolved, adapted response to variation in resource availability, and it is a common phenomenon found in all major groups of animals. Birds fly south for t... | What evolved, adapted response to resource availability is the long-range seasonal movement of animals? | regulating | migration | changing | Stagnation | B | Migration Migration is the long-range seasonal movement of animals. It is an evolved, adapted response to variation in resource availability, and it is a common phenomenon found in all major groups of animals. Birds fly south for the winter to get to warmer climates with sufficient food, and salmon migrate to their spa... | sciq |
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