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What do producers use with inorganic chemicals to make food?
[ "The sun", "properties", "bamboo", "trees", "vegetation", "heat", "plant life", "Hemoglobin" ]
The sun
Answer the following multiple-choice question. Question: What do producers use with inorganic chemicals to make food? Options: A. The sun B. properties C. bamboo D. trees E. vegetation F. heat G. plant life H. Hemoglobin Which option is correct and why?
The correct answer is: The sun.
A
What is a fiber that is not found in reptiles or birds?
[ "Tail", "muscle", "feathers", "sugar", "down", "hair", "Fat", "scales" ]
hair
Answer the following multiple-choice question. Question: What is a fiber that is not found in reptiles or birds? Options: A. Tail B. muscle C. feathers D. sugar E. down F. hair G. Fat H. scales Which option is correct and why?
The correct answer is: hair.
A
At any specific time, the rate at which a reaction is proceeding is known as its what?
[ "immediate rate", "emitted rate", "instantaneous rate", "spontaneous rate" ]
instantaneous rate
Answer the following multiple-choice question. Question: At any specific time, the rate at which a reaction is proceeding is known as its what? Options: A. immediate rate B. emitted rate C. instantaneous rate D. spontaneous rate Which option is correct and why?
The correct answer is: instantaneous rate.
C
What is necessary for growth and energy?
[ "nutrients", "warmth", "breeding", "determination" ]
nutrients
Answer the following multiple-choice question. Question: What is necessary for growth and energy? Options: A. nutrients B. warmth C. breeding D. determination Which option is correct and why?
The correct answer is: nutrients.
A
What is a soft, malleable, and corrosion resistant material called?
[ "copper", "lead", "tin", "gold" ]
lead
Answer the following multiple-choice question. Question: What is a soft, malleable, and corrosion resistant material called? Options: A. copper B. lead C. tin D. gold Which option is correct and why?
The correct answer is: lead.
B
What do you call the energy that must be overcome in order for a chemical reaction to occur, or the minimum energy required to start a chemical reaction?
[ "phase energy", "expression energy", "activation energy", "kinetic energy" ]
activation energy
Answer the following multiple-choice question. Question: What do you call the energy that must be overcome in order for a chemical reaction to occur, or the minimum energy required to start a chemical reaction? Options: A. phase energy B. expression energy C. activation energy D. kinetic energy Which option is correct and why?
The correct answer is: activation energy.
C
The remainder is transferred by contraction of what before the ventricles begin to contract?
[ "the atria", "the arteries", "the stomach", "the large intestine" ]
the atria
Answer the following multiple-choice question. Question: The remainder is transferred by contraction of what before the ventricles begin to contract? Options: A. the atria B. the arteries C. the stomach D. the large intestine Which option is correct and why?
The correct answer is: the atria.
A
A magnifying glass
[ "would allow the user to better view the legs on an ant", "would enhance the smell of a viewed specimen", "would blur the legs of an ant", "would enhance the feel of the user" ]
would allow the user to better view the legs on an ant
Answer the following multiple-choice question. Question: A magnifying glass Options: A. would allow the user to better view the legs on an ant B. would enhance the smell of a viewed specimen C. would blur the legs of an ant D. would enhance the feel of the user Which option is correct and why?
The correct answer is: would allow the user to better view the legs on an ant.
A
Increasing voltage with a higher-volt battery does what to the current?
[ "blocks it", "decreases it", "increases it", "stops it" ]
increases it
Answer the following multiple-choice question. Question: Increasing voltage with a higher-volt battery does what to the current? Options: A. blocks it B. decreases it C. increases it D. stops it Which option is correct and why?
The correct answer is: increases it.
C
A girl wants to use a renewable resource to build a house, so she uses
[ "glass shards", "rubber pipes", "log portions", "plastic spoons" ]
log portions
Answer the following multiple-choice question. Question: A girl wants to use a renewable resource to build a house, so she uses Options: A. glass shards B. rubber pipes C. log portions D. plastic spoons Which option is correct and why?
The correct answer is: log portions.
C
Temperature and pressure receptors in most animals are located:
[ "Veins and arteries.", "in one limb each", "in the same organ", "an organism's body", "it keeps an organism warm", "in two different organs", "in plants", "frontal zones" ]
in the same organ
Answer the following multiple-choice question. Question: Temperature and pressure receptors in most animals are located: Options: A. Veins and arteries. B. in one limb each C. in the same organ D. an organism's body E. it keeps an organism warm F. in two different organs G. in plants H. frontal zones Which option is correct and why?
The correct answer is: in the same organ.
C
Two major types of fungus-like protists are slime molds and which other?
[ "foul molds", "black molds", "green molds", "water molds" ]
water molds
Answer the following multiple-choice question. Question: Two major types of fungus-like protists are slime molds and which other? Options: A. foul molds B. black molds C. green molds D. water molds Which option is correct and why?
The correct answer is: water molds.
D
What travels 9.5 trillion kilometers a year?
[ "Sound", "air", "electricity", "light" ]
light
Answer the following multiple-choice question. Question: What travels 9.5 trillion kilometers a year? Options: A. Sound B. air C. electricity D. light Which option is correct and why?
The correct answer is: light.
D
What causes days to change?
[ "Space travel", "recovery time from fatigue", "Earth orbiting the Sun", "sunlight", "earthquakes", "Solar energy", "prolonged thirst", "global warming" ]
Earth orbiting the Sun
Answer the following multiple-choice question. Question: What causes days to change? Options: A. Space travel B. recovery time from fatigue C. Earth orbiting the Sun D. sunlight E. earthquakes F. Solar energy G. prolonged thirst H. global warming Which option is correct and why?
The correct answer is: Earth orbiting the Sun.
C
Acids turn blue litmus paper which color?
[ "red", "purple", "white", "grey" ]
red
Answer the following multiple-choice question. Question: Acids turn blue litmus paper which color? Options: A. red B. purple C. white D. grey Which option is correct and why?
The correct answer is: red.
A
the site of what contains the green pigment chlorophyll?
[ "orchids", "fertile", "peachleaf willow", "In their leaves", "photosynthesis", "Most plants", "an organism's body", "swamp vegetation" ]
photosynthesis
Answer the following multiple-choice question. Question: the site of what contains the green pigment chlorophyll? Options: A. orchids B. fertile C. peachleaf willow D. In their leaves E. photosynthesis F. Most plants G. an organism's body H. swamp vegetation Which option is correct and why?
The correct answer is: photosynthesis.
E
The galápagos islands are a group of 16 volcanic islands 600 miles off the west coast of what continent?
[ "south america", "europe", "north america", "asia" ]
south america
Answer the following multiple-choice question. Question: The galápagos islands are a group of 16 volcanic islands 600 miles off the west coast of what continent? Options: A. south america B. europe C. north america D. asia Which option is correct and why?
The correct answer is: south america.
A
What color light is actually the absence of electromagnetic waves in the visible spectrum, for humans?
[ "black light", "ultraviolet light", "blue light", "infrared light" ]
black light
Answer the following multiple-choice question. Question: What color light is actually the absence of electromagnetic waves in the visible spectrum, for humans? Options: A. black light B. ultraviolet light C. blue light D. infrared light Which option is correct and why?
The correct answer is: black light.
A
What happens to water when it is heated in the broiler?
[ "it evolves", "it introduces", "it expands", "it contracts" ]
it expands
Answer the following multiple-choice question. Question: What happens to water when it is heated in the broiler? Options: A. it evolves B. it introduces C. it expands D. it contracts Which option is correct and why?
The correct answer is: it expands.
C
Matching donor and recipient blood types is important because different blood types have different types of what?
[ "coagulants", "antigens", "charges", "antibodies" ]
antibodies
Answer the following multiple-choice question. Question: Matching donor and recipient blood types is important because different blood types have different types of what? Options: A. coagulants B. antigens C. charges D. antibodies Which option is correct and why?
The correct answer is: antibodies.
D
What does the human body produce to help digest food?
[ "vitamins", "carbohydrates", "fiber", "enzymes" ]
enzymes
Answer the following multiple-choice question. Question: What does the human body produce to help digest food? Options: A. vitamins B. carbohydrates C. fiber D. enzymes Which option is correct and why?
The correct answer is: enzymes.
D
Platypus and Echidna are mammals that reproduce by what?
[ "hospital visits", "cesarean sections", "organs", "warm-blooded", "fur and fat", "live birth", "competition", "laying eggs" ]
laying eggs
Answer the following multiple-choice question. Question: Platypus and Echidna are mammals that reproduce by what? Options: A. hospital visits B. cesarean sections C. organs D. warm-blooded E. fur and fat F. live birth G. competition H. laying eggs Which option is correct and why?
The correct answer is: laying eggs.
A
Bacteria can be chemotrophs, which obtain what by breaking down chemical compounds in their environment?
[ "waste", "food", "energy", "chemials" ]
energy
Answer the following multiple-choice question. Question: Bacteria can be chemotrophs, which obtain what by breaking down chemical compounds in their environment? Options: A. waste B. food C. energy D. chemials Which option is correct and why?
The correct answer is: energy.
C
Kyphosis, lordosis, and scoliosis are all diseases involving improper curvature of which bodily structure (which is supposed to be curved in a certain way anyway)?
[ "spine", "lungs", "aorta", "femur" ]
spine
Answer the following multiple-choice question. Question: Kyphosis, lordosis, and scoliosis are all diseases involving improper curvature of which bodily structure (which is supposed to be curved in a certain way anyway)? Options: A. spine B. lungs C. aorta D. femur Which option is correct and why?
The correct answer is: spine.
A
What happens to a tectonic plate when it subducts?
[ "it sinks", "it warms", "it cracks", "it melts" ]
it melts
Answer the following multiple-choice question. Question: What happens to a tectonic plate when it subducts? Options: A. it sinks B. it warms C. it cracks D. it melts Which option is correct and why?
The correct answer is: it melts.
D
Who is likely to receive its coloration and hairy body from its parents?
[ "Peter the Parakeet", "Valentina the Vole", "Terry the Tuna", "Greta the Grouper" ]
Valentina the Vole
Answer the following multiple-choice question. Question: Who is likely to receive its coloration and hairy body from its parents? Options: A. Peter the Parakeet B. Valentina the Vole C. Terry the Tuna D. Greta the Grouper Which option is correct and why?
The correct answer is: Valentina the Vole.
B
A thermal conductor is made of
[ "often metallic", "types of rubber", "types of branches", "electrodes" ]
often metallic
Answer the following multiple-choice question. Question: A thermal conductor is made of Options: A. often metallic B. types of rubber C. types of branches D. electrodes Which option is correct and why?
The correct answer is: often metallic.
A
What two gases are the main components of air?
[ "carbon and oxygen", "oxygen and helium", "hydrogen and helium", "nitrogen and oxygen" ]
nitrogen and oxygen
Answer the following multiple-choice question. Question: What two gases are the main components of air? Options: A. carbon and oxygen B. oxygen and helium C. hydrogen and helium D. nitrogen and oxygen Which option is correct and why?
The correct answer is: nitrogen and oxygen.
D
What do neutrinos cause in stars?
[ "photons", "energy", "Death", "Heat", "Light", "Darkness", "power", "motion" ]
Light
Answer the following multiple-choice question. Question: What do neutrinos cause in stars? Options: A. photons B. energy C. Death D. Heat E. Light F. Darkness G. power H. motion Which option is correct and why?
The correct answer is: Light.
E
The hamstrings flex the leg, whereas the quadriceps femoris have what effect?
[ "contract", "extend", "stabilize", "no effect" ]
extend
Answer the following multiple-choice question. Question: The hamstrings flex the leg, whereas the quadriceps femoris have what effect? Options: A. contract B. extend C. stabilize D. no effect Which option is correct and why?
The correct answer is: extend.
B
What type of organisms do not need blood?
[ "marine", "vertebrate", "single-celled", "cold-blooded" ]
single-celled
Answer the following multiple-choice question. Question: What type of organisms do not need blood? Options: A. marine B. vertebrate C. single-celled D. cold-blooded Which option is correct and why?
The correct answer is: single-celled.
C
If a pull is strong somewhere, it likely has
[ "snakes", "magnitude", "water", "frames" ]
magnitude
Answer the following multiple-choice question. Question: If a pull is strong somewhere, it likely has Options: A. snakes B. magnitude C. water D. frames Which option is correct and why?
The correct answer is: magnitude.
B
How do fungi get nutrition?
[ "Exfoliation", "agriculture", "heat produced", "Cooking", "absorb it", "Energy", "Evaporation", "glucose" ]
absorb it
Answer the following multiple-choice question. Question: How do fungi get nutrition? Options: A. Exfoliation B. agriculture C. heat produced D. Cooking E. absorb it F. Energy G. Evaporation H. glucose Which option is correct and why?
The correct answer is: absorb it.
E
What can happen if a metal is heated?
[ "change chemical composition", "refract energy", "they bend", "It expands", "electricity", "Relieve pain", "maintains core temperature", "becomes hot" ]
becomes hot
Answer the following multiple-choice question. Question: What can happen if a metal is heated? Options: A. change chemical composition B. refract energy C. they bend D. It expands E. electricity F. Relieve pain G. maintains core temperature H. becomes hot Which option is correct and why?
The correct answer is: becomes hot.
A
What do all cells have in common?
[ "life span", "same function", "small size", "same shape" ]
small size
Answer the following multiple-choice question. Question: What do all cells have in common? Options: A. life span B. same function C. small size D. same shape Which option is correct and why?
The correct answer is: small size.
C
What are a class of biochemical compounds that living things use to store energy?
[ "hydrocarbons", "calories", "proteins", "lipids" ]
lipids
Answer the following multiple-choice question. Question: What are a class of biochemical compounds that living things use to store energy? Options: A. hydrocarbons B. calories C. proteins D. lipids Which option is correct and why?
The correct answer is: lipids.
D
The fight or flight response involves what system?
[ "cellular nervous system", "autonomic nervous system", "functional nervous system", "voluntary nervous system" ]
autonomic nervous system
Answer the following multiple-choice question. Question: The fight or flight response involves what system? Options: A. cellular nervous system B. autonomic nervous system C. functional nervous system D. voluntary nervous system Which option is correct and why?
The correct answer is: autonomic nervous system.
B
Where does most geological activity takes place?
[ "at ocean bottoms", "in mountain ranges", "at plate boundaries", "in coastal areas" ]
at plate boundaries
Answer the following multiple-choice question. Question: Where does most geological activity takes place? Options: A. at ocean bottoms B. in mountain ranges C. at plate boundaries D. in coastal areas Which option is correct and why?
The correct answer is: at plate boundaries.
C
What reduces the resources needed to make something?
[ "water conservation", "A computer", "saving energy", "Pollution", "electron microscope", "power stations", "Fuel cells", "Electrical energy" ]
saving energy
Answer the following multiple-choice question. Question: What reduces the resources needed to make something? Options: A. water conservation B. A computer C. saving energy D. Pollution E. electron microscope F. power stations G. Fuel cells H. Electrical energy Which option is correct and why?
The correct answer is: saving energy.
C
The root system is usually anchored by one main root developed from what?
[ "nuclei radicle", "sperm radicle", "organisms radicle", "embryonic radicle" ]
embryonic radicle
Answer the following multiple-choice question. Question: The root system is usually anchored by one main root developed from what? Options: A. nuclei radicle B. sperm radicle C. organisms radicle D. embryonic radicle Which option is correct and why?
The correct answer is: embryonic radicle.
D
If the part of a tree that contains chloroplasts has flatter surfaces they have more
[ "vibrant colors", "absorbing mass", "life", "friends" ]
absorbing mass
Answer the following multiple-choice question. Question: If the part of a tree that contains chloroplasts has flatter surfaces they have more Options: A. vibrant colors B. absorbing mass C. life D. friends Which option is correct and why?
The correct answer is: absorbing mass.
B
thick fur can be used for minimizing what?
[ "heat energy", "heat production", "scattered light", "energy usage", "freezer burn", "movie production", "fur production", "Temperature" ]
heat production
Answer the following multiple-choice question. Question: thick fur can be used for minimizing what? Options: A. heat energy B. heat production C. scattered light D. energy usage E. freezer burn F. movie production G. fur production H. Temperature Which option is correct and why?
The correct answer is: heat production.
B
Parents can pass on many genes, including those for:
[ "the eyes", "trust accounts", "animals", "babies", "cremation", "clothing", "cancer", "offspring" ]
cancer
Answer the following multiple-choice question. Question: Parents can pass on many genes, including those for: Options: A. the eyes B. trust accounts C. animals D. babies E. cremation F. clothing G. cancer H. offspring Which option is correct and why?
The correct answer is: cancer.
A
What part of a plant, which is attached to its stem nodes, is the "main organ" of photosynthesis?
[ "flowers", "leaves", "roots", "spores" ]
leaves
Answer the following multiple-choice question. Question: What part of a plant, which is attached to its stem nodes, is the "main organ" of photosynthesis? Options: A. flowers B. leaves C. roots D. spores Which option is correct and why?
The correct answer is: leaves.
B
An organism passes from the world and so it
[ "has croaked", "has money", "has health", "has flown" ]
has croaked
Answer the following multiple-choice question. Question: An organism passes from the world and so it Options: A. has croaked B. has money C. has health D. has flown Which option is correct and why?
The correct answer is: has croaked.
A
Millilters mL is a unit generally used for values between 1 and 1000 to measure
[ "the space inside a container", "the height of a container", "the weight of a container", "the length of a container" ]
the space inside a container
Answer the following multiple-choice question. Question: Millilters mL is a unit generally used for values between 1 and 1000 to measure Options: A. the space inside a container B. the height of a container C. the weight of a container D. the length of a container Which option is correct and why?
The correct answer is: the space inside a container.
A
What enables bones to perform movement?
[ "contraction", "Energy", "sensory neurons", "looseness", "Chemical energy", "Vibrates", "fur and fat", "layers of fat" ]
contraction
Answer the following multiple-choice question. Question: What enables bones to perform movement? Options: A. contraction B. Energy C. sensory neurons D. looseness E. Chemical energy F. Vibrates G. fur and fat H. layers of fat Which option is correct and why?
The correct answer is: contraction.
A
Antibodies also mark pathogens for destruction by which cells?
[ "platelets", "phagocytic", "interferons", "leukocytes" ]
phagocytic
Answer the following multiple-choice question. Question: Antibodies also mark pathogens for destruction by which cells? Options: A. platelets B. phagocytic C. interferons D. leukocytes Which option is correct and why?
The correct answer is: phagocytic.
B
What is the term for a small organelle where proteins are made?
[ "ribosome", "capsule", "ovary", "atom" ]
ribosome
Answer the following multiple-choice question. Question: What is the term for a small organelle where proteins are made? Options: A. ribosome B. capsule C. ovary D. atom Which option is correct and why?
The correct answer is: ribosome.
A
Temperature is a measure of the motion (kinetic energy) of what?
[ "molecules", "particles", "electrons", "nucleus" ]
molecules
Answer the following multiple-choice question. Question: Temperature is a measure of the motion (kinetic energy) of what? Options: A. molecules B. particles C. electrons D. nucleus Which option is correct and why?
The correct answer is: molecules.
A
What can easily become hot if exposed to heat?
[ "an object", "engines", "vehicles", "animals", "the skin", "clams", "copper", "Mammal" ]
copper
Answer the following multiple-choice question. Question: What can easily become hot if exposed to heat? Options: A. an object B. engines C. vehicles D. animals E. the skin F. clams G. copper H. Mammal Which option is correct and why?
The correct answer is: copper.
A
What causes reduction of elasticity in all organs?
[ "age", "radiation", "weight gain", "low vitamin D" ]
age
Answer the following multiple-choice question. Question: What causes reduction of elasticity in all organs? Options: A. age B. radiation C. weight gain D. low vitamin D Which option is correct and why?
The correct answer is: age.
A
What is the most common type of organic compound?
[ "proteins", "hydrocarbons", "lipids", "carbohydrates" ]
carbohydrates
Answer the following multiple-choice question. Question: What is the most common type of organic compound? Options: A. proteins B. hydrocarbons C. lipids D. carbohydrates Which option is correct and why?
The correct answer is: carbohydrates.
D
What reads the genetic code in mRNA and makes a chain of amino acids?
[ "animals", "it needs them", "A computer", "translation", "A Greek letter", "peachleaf willow", "more abundant", "humans" ]
translation
Answer the following multiple-choice question. Question: What reads the genetic code in mRNA and makes a chain of amino acids? Options: A. animals B. it needs them C. A computer D. translation E. A Greek letter F. peachleaf willow G. more abundant H. humans Which option is correct and why?
The correct answer is: translation.
D
What type of compounds make up the cells and tissues of living things?
[ "proximal", "hormonal", "microbial", "biochemical" ]
biochemical
Answer the following multiple-choice question. Question: What type of compounds make up the cells and tissues of living things? Options: A. proximal B. hormonal C. microbial D. biochemical Which option is correct and why?
The correct answer is: biochemical.
D
what can carbon be stored in for millions of years?
[ "limestone", "fossil fuels", "hydrocarbons", "graptolites", "fish", "humans", "h2o", "layers of fat" ]
limestone
Answer the following multiple-choice question. Question: what can carbon be stored in for millions of years? Options: A. limestone B. fossil fuels C. hydrocarbons D. graptolites E. fish F. humans G. h2o H. layers of fat Which option is correct and why?
The correct answer is: limestone.
A
What can be done to a solid by adding heat energy?
[ "massive damage", "phasing the bubbles", "It expands", "cooling the center", "Evaporation", "changing the phase", "removing the air", "Water expanding" ]
changing the phase
Answer the following multiple-choice question. Question: What can be done to a solid by adding heat energy? Options: A. massive damage B. phasing the bubbles C. It expands D. cooling the center E. Evaporation F. changing the phase G. removing the air H. Water expanding Which option is correct and why?
The correct answer is: changing the phase.
A
Someone is driving at night. The day was warm, but now the night is cool, and there is a lot of mist that is difficult to see through. The mist is prevalent because
[ "humidity from the day condensed as night progressed", "warm air is usually found in daytime", "it is always misty at night", "the cool air makes everything feel warm" ]
humidity from the day condensed as night progressed
Answer the following multiple-choice question. Question: Someone is driving at night. The day was warm, but now the night is cool, and there is a lot of mist that is difficult to see through. The mist is prevalent because Options: A. humidity from the day condensed as night progressed B. warm air is usually found in daytime C. it is always misty at night D. the cool air makes everything feel warm Which option is correct and why?
The correct answer is: humidity from the day condensed as night progressed.
A
What makes monotremes different than other mammals?
[ "they lay eggs", "they reproduce asexually", "they spawn", "they lack backbones" ]
they lay eggs
Answer the following multiple-choice question. Question: What makes monotremes different than other mammals? Options: A. they lay eggs B. they reproduce asexually C. they spawn D. they lack backbones Which option is correct and why?
The correct answer is: they lay eggs.
A
What consists mainly of parenchymal cells with chloroplasts?
[ "mesophyll", "periosteum", "chlorophyll", "mitochondria" ]
mesophyll
Answer the following multiple-choice question. Question: What consists mainly of parenchymal cells with chloroplasts? Options: A. mesophyll B. periosteum C. chlorophyll D. mitochondria Which option is correct and why?
The correct answer is: mesophyll.
A
What is moved by mechanical energy in an automobile?
[ "vehicles", "brake pad", "humans", "animals", "people", "gas pedal", "pistons", "seatbelt" ]
pistons
Answer the following multiple-choice question. Question: What is moved by mechanical energy in an automobile? Options: A. vehicles B. brake pad C. humans D. animals E. people F. gas pedal G. pistons H. seatbelt Which option is correct and why?
The correct answer is: pistons.
A
Life itself could not exist without what energy, which plays a vital role in photosynthesis?
[ "magnetic energy", "time energy", "spin energy", "light energy" ]
light energy
Answer the following multiple-choice question. Question: Life itself could not exist without what energy, which plays a vital role in photosynthesis? Options: A. magnetic energy B. time energy C. spin energy D. light energy Which option is correct and why?
The correct answer is: light energy.
D
Many diseases arise from genetic mutations that prevent the synthesis of critical what?
[ "oils", "acids", "lipids", "proteins" ]
proteins
Answer the following multiple-choice question. Question: Many diseases arise from genetic mutations that prevent the synthesis of critical what? Options: A. oils B. acids C. lipids D. proteins Which option is correct and why?
The correct answer is: proteins.
D
_ is more complex in eukaryotes than prokaryotes.
[ "voltage", "disease", "Epidermis", "Mitosis", "organ", "distance", "recycling", "resistance" ]
Mitosis
Answer the following multiple-choice question. Question: _ is more complex in eukaryotes than prokaryotes. Options: A. voltage B. disease C. Epidermis D. Mitosis E. organ F. distance G. recycling H. resistance Which option is correct and why?
The correct answer is: Mitosis.
D
A ramp can move a person to what level?
[ "a pulley", "handicapped", "a higher one", "darker level" ]
a higher one
Answer the following multiple-choice question. Question: A ramp can move a person to what level? Options: A. a pulley B. handicapped C. a higher one D. darker level Which option is correct and why?
The correct answer is: a higher one.
C
A heterogeneous mixture of particles of one substance distributed throughout a second substance in a different phase is known as what?
[ "solution", "suspension", "disruption", "fluid" ]
suspension
Answer the following multiple-choice question. Question: A heterogeneous mixture of particles of one substance distributed throughout a second substance in a different phase is known as what? Options: A. solution B. suspension C. disruption D. fluid Which option is correct and why?
The correct answer is: suspension.
B
In comparing two solutions of unequal solute concentration, the solution with the higher solute concentration is called what?
[ "hypertonic", "acetic", "hypothermic", "hydrophilic" ]
hypertonic
Answer the following multiple-choice question. Question: In comparing two solutions of unequal solute concentration, the solution with the higher solute concentration is called what? Options: A. hypertonic B. acetic C. hypothermic D. hydrophilic Which option is correct and why?
The correct answer is: hypertonic.
A
Moles are underground a lot of the time, and since few animals live there, they are unlikely to be
[ "near worms", "killed by others", "dirty", "in dirt" ]
killed by others
Answer the following multiple-choice question. Question: Moles are underground a lot of the time, and since few animals live there, they are unlikely to be Options: A. near worms B. killed by others C. dirty D. in dirt Which option is correct and why?
The correct answer is: killed by others.
B
Who invented the taxonomic classification system?
[ "Isaac Newton", "Pascal", "carl linnaeus", "gregor mendel" ]
carl linnaeus
Answer the following multiple-choice question. Question: Who invented the taxonomic classification system? Options: A. Isaac Newton B. Pascal C. carl linnaeus D. gregor mendel Which option is correct and why?
The correct answer is: carl linnaeus.
C
when an object is made from a material, what does it take on from that material?
[ "heat energy", "electromagnetic energy", "kinetic energy", "characteristics", "newtons", "nothing", "gravity", "Electrical energy" ]
characteristics
Answer the following multiple-choice question. Question: when an object is made from a material, what does it take on from that material? Options: A. heat energy B. electromagnetic energy C. kinetic energy D. characteristics E. newtons F. nothing G. gravity H. Electrical energy Which option is correct and why?
The correct answer is: characteristics.
D
Oxygenated air, taken in during inhalation, diffuses across the surface of the lungs into the what?
[ "proteins", "liver", "brain", "bloodstream" ]
bloodstream
Answer the following multiple-choice question. Question: Oxygenated air, taken in during inhalation, diffuses across the surface of the lungs into the what? Options: A. proteins B. liver C. brain D. bloodstream Which option is correct and why?
The correct answer is: bloodstream.
D
The state of matter - solid, liquid, or gas - is also considered what type of property?
[ "physical", "mechanical", "chemical", "thermal" ]
physical
Answer the following multiple-choice question. Question: The state of matter - solid, liquid, or gas - is also considered what type of property? Options: A. physical B. mechanical C. chemical D. thermal Which option is correct and why?
The correct answer is: physical.
A
What system, which includes the skin, plays important roles in protection, sensing stimuli and thermoregulation?
[ "teleporters system", "digestive system", "integumentary system", "pectins system" ]
integumentary system
Answer the following multiple-choice question. Question: What system, which includes the skin, plays important roles in protection, sensing stimuli and thermoregulation? Options: A. teleporters system B. digestive system C. integumentary system D. pectins system Which option is correct and why?
The correct answer is: integumentary system.
C
What is the term for a mixture that varies in its composition?
[ "amorphous", "heterogeneous", "homogeneous", "mixed composition" ]
heterogeneous
Answer the following multiple-choice question. Question: What is the term for a mixture that varies in its composition? Options: A. amorphous B. heterogeneous C. homogeneous D. mixed composition Which option is correct and why?
The correct answer is: heterogeneous.
B
Memory t cells are long-lived and can even persist for how long?
[ "eons", "minutes", "days", "lifetime" ]
lifetime
Answer the following multiple-choice question. Question: Memory t cells are long-lived and can even persist for how long? Options: A. eons B. minutes C. days D. lifetime Which option is correct and why?
The correct answer is: lifetime.
D
Fluoride ion is widely used in water supplies to help prevent what?
[ "chlorine taste", "tooth decay", "rust", "bacteria" ]
tooth decay
Answer the following multiple-choice question. Question: Fluoride ion is widely used in water supplies to help prevent what? Options: A. chlorine taste B. tooth decay C. rust D. bacteria Which option is correct and why?
The correct answer is: tooth decay.
B
What usually has a positive impact on an ecosystem's food chain?
[ "Jellyfish", "mussels", "invasive seeds", "genetic diversity", "seed dispersal", "colony collapse", "peachleaf willow", "blossom end rot" ]
seed dispersal
Answer the following multiple-choice question. Question: What usually has a positive impact on an ecosystem's food chain? Options: A. Jellyfish B. mussels C. invasive seeds D. genetic diversity E. seed dispersal F. colony collapse G. peachleaf willow H. blossom end rot Which option is correct and why?
The correct answer is: seed dispersal.
E
a lawn mower converts _ into motion
[ "kinetic energy", "flow of electrons", "hydrocarbons", "energy", "Greenhouse gasses", "heat energy", "fossil fuels", "Greenhouse gases" ]
hydrocarbons
Answer the following multiple-choice question. Question: a lawn mower converts _ into motion Options: A. kinetic energy B. flow of electrons C. hydrocarbons D. energy E. Greenhouse gasses F. heat energy G. fossil fuels H. Greenhouse gases Which option is correct and why?
The correct answer is: hydrocarbons.
C
As the Earth crust receives radiation from the sun it
[ "releases CO2", "loses mass", "swells", "thermally increases" ]
thermally increases
Answer the following multiple-choice question. Question: As the Earth crust receives radiation from the sun it Options: A. releases CO2 B. loses mass C. swells D. thermally increases Which option is correct and why?
The correct answer is: thermally increases.
D
What happens to the wire in a fuse if it's current rating is exceed?
[ "it melts", "sparks", "disappears", "ignites" ]
it melts
Answer the following multiple-choice question. Question: What happens to the wire in a fuse if it's current rating is exceed? Options: A. it melts B. sparks C. disappears D. ignites Which option is correct and why?
The correct answer is: it melts.
A
What is something that can be hazardous to use in public?
[ "smallpox", "backpack", "guide dog", "influenza", "protective gear", "cigarettes", "smoking", "cell phones" ]
cell phones
Answer the following multiple-choice question. Question: What is something that can be hazardous to use in public? Options: A. smallpox B. backpack C. guide dog D. influenza E. protective gear F. cigarettes G. smoking H. cell phones Which option is correct and why?
The correct answer is: cell phones.
A
Sediment is dropped at the mouth of a river by water when what happens?
[ "Destroy bridges", "erosion", "global warming", "rivers slow", "flooding", "contamination", "massive damage", "storms" ]
rivers slow
Answer the following multiple-choice question. Question: Sediment is dropped at the mouth of a river by water when what happens? Options: A. Destroy bridges B. erosion C. global warming D. rivers slow E. flooding F. contamination G. massive damage H. storms Which option is correct and why?
The correct answer is: rivers slow.
D
What are kpa, atm, and mmhg measurement units for?
[ "pressure", "weight", "velocity", "temperature" ]
pressure
Answer the following multiple-choice question. Question: What are kpa, atm, and mmhg measurement units for? Options: A. pressure B. weight C. velocity D. temperature Which option is correct and why?
The correct answer is: pressure.
A
What does the thymus gland produce?
[ "t cells", "b cells", "hormones", "insulin" ]
t cells
Answer the following multiple-choice question. Question: What does the thymus gland produce? Options: A. t cells B. b cells C. hormones D. insulin Which option is correct and why?
The correct answer is: t cells.
A
Aquatic producers need nutrients and what dissolved gas, which is more abundant near the surface of water?
[ "methane", "nitrogen", "oxygen", "helium" ]
oxygen
Answer the following multiple-choice question. Question: Aquatic producers need nutrients and what dissolved gas, which is more abundant near the surface of water? Options: A. methane B. nitrogen C. oxygen D. helium Which option is correct and why?
The correct answer is: oxygen.
C
Bones are made up of different types of what?
[ "fiber", "cartilage", "blood cells", "tissue" ]
tissue
Answer the following multiple-choice question. Question: Bones are made up of different types of what? Options: A. fiber B. cartilage C. blood cells D. tissue Which option is correct and why?
The correct answer is: tissue.
D
Which would rely on rainfall the most to sustain life?
[ "a water feature", "a pool", "a water park", "a lake" ]
a lake
Answer the following multiple-choice question. Question: Which would rely on rainfall the most to sustain life? Options: A. a water feature B. a pool C. a water park D. a lake Which option is correct and why?
The correct answer is: a lake.
D
What creates fantastic rock formations?
[ "ligt", "frustrated journalists", "mines", "solar flares", "nektar", "painting flowers", "making", "wind" ]
wind
Answer the following multiple-choice question. Question: What creates fantastic rock formations? Options: A. ligt B. frustrated journalists C. mines D. solar flares E. nektar F. painting flowers G. making H. wind Which option is correct and why?
The correct answer is: wind.
A
the Himalayas were formed from older what
[ "soils", "plates", "rivers", "rock", "eras", "meadows", "dirt", "plains" ]
rock
Answer the following multiple-choice question. Question: the Himalayas were formed from older what Options: A. soils B. plates C. rivers D. rock E. eras F. meadows G. dirt H. plains Which option is correct and why?
The correct answer is: rock.
D
What requires a source of electricity to produce light?
[ "Broken light bulb.", "The sun.", "basic building blocks of life", "an electron microscope", "The source magazine.", "algae and plants", "the simplest of green plants", "An emergency lighting source." ]
An emergency lighting source.
Answer the following multiple-choice question. Question: What requires a source of electricity to produce light? Options: A. Broken light bulb. B. The sun. C. basic building blocks of life D. an electron microscope E. The source magazine. F. algae and plants G. the simplest of green plants H. An emergency lighting source. Which option is correct and why?
The correct answer is: An emergency lighting source..
A
What is not a cell?
[ "all matter", "layers of fat", "illness", "bacteria", "influenza", "Leptospirosis", "an object", "hydrocarbons" ]
influenza
Answer the following multiple-choice question. Question: What is not a cell? Options: A. all matter B. layers of fat C. illness D. bacteria E. influenza F. Leptospirosis G. an object H. hydrocarbons Which option is correct and why?
The correct answer is: influenza.
E
What is an ion that is in common to both salts in a solution?
[ "native ion", "regular ion", "common ion", "strong ion" ]
common ion
Answer the following multiple-choice question. Question: What is an ion that is in common to both salts in a solution? Options: A. native ion B. regular ion C. common ion D. strong ion Which option is correct and why?
The correct answer is: common ion.
C
What type of waves start when a source of energy causes a disturbance in the medium?
[ "mechanical waves", "fluid waves", "mechanical currents", "magnetic waves" ]
mechanical waves
Answer the following multiple-choice question. Question: What type of waves start when a source of energy causes a disturbance in the medium? Options: A. mechanical waves B. fluid waves C. mechanical currents D. magnetic waves Which option is correct and why?
The correct answer is: mechanical waves.
A
The volume of blood each ventricle pumps per minute is called what?
[ "cardiac output", "blood output", "brain output", "trauma output" ]
cardiac output
Answer the following multiple-choice question. Question: The volume of blood each ventricle pumps per minute is called what? Options: A. cardiac output B. blood output C. brain output D. trauma output Which option is correct and why?
The correct answer is: cardiac output.
A
What is a process that changes some chemical substances into other chemical substances?
[ "a chemical reaction", "a bio reaction", "cellular respiration", "spontaneous mutation" ]
a chemical reaction
Answer the following multiple-choice question. Question: What is a process that changes some chemical substances into other chemical substances? Options: A. a chemical reaction B. a bio reaction C. cellular respiration D. spontaneous mutation Which option is correct and why?
The correct answer is: a chemical reaction.
A
What evolutionary process may affect the distribution of a polygenic trait?
[ "natural selection", "characteristic selection", "artificial selection", "flow selection" ]
natural selection
Answer the following multiple-choice question. Question: What evolutionary process may affect the distribution of a polygenic trait? Options: A. natural selection B. characteristic selection C. artificial selection D. flow selection Which option is correct and why?
The correct answer is: natural selection.
A
what enters the egg?
[ "DNA", "flow of electrons", "insects", "Chemical energy", "fallopian tube", "sperm nuclei", "acid", "pollen" ]
sperm nuclei
Answer the following multiple-choice question. Question: what enters the egg? Options: A. DNA B. flow of electrons C. insects D. Chemical energy E. fallopian tube F. sperm nuclei G. acid H. pollen Which option is correct and why?
The correct answer is: sperm nuclei.
A
what dies is their oxygen supply is cut off?
[ "trees", "Plant growth is reduced", "weathering", "Veins and arteries.", "Most plants", "astroglial cells", "critical organs", "gravity" ]
astroglial cells
Answer the following multiple-choice question. Question: what dies is their oxygen supply is cut off? Options: A. trees B. Plant growth is reduced C. weathering D. Veins and arteries. E. Most plants F. astroglial cells G. critical organs H. gravity Which option is correct and why?
The correct answer is: astroglial cells.
A
What do animals require to move?
[ "babies", "food", "warmth", "air", "oven", "heat", "oxygen", "children" ]
food
Answer the following multiple-choice question. Question: What do animals require to move? Options: A. babies B. food C. warmth D. air E. oven F. heat G. oxygen H. children Which option is correct and why?
The correct answer is: food.
B
What do electric motors use to change electrical energy into kinetic?
[ "generators", "electromagnets", "fans", "resonances" ]
electromagnets
Answer the following multiple-choice question. Question: What do electric motors use to change electrical energy into kinetic? Options: A. generators B. electromagnets C. fans D. resonances Which option is correct and why?
The correct answer is: electromagnets.
B