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How long does it take for earth to rotate on it's axis one time?
[ "12 hours", "6 hours", "26 hours", "24 hours" ]
24 hours
Answer the following multiple-choice question. Question: How long does it take for earth to rotate on it's axis one time? Options: A. 12 hours B. 6 hours C. 26 hours D. 24 hours Which option is correct and why?
The correct answer is: 24 hours.
All chemical changes involve a transfer of what?
[ "Water", "heating", "fuel", "energy" ]
energy
Answer the following multiple-choice question. Question: All chemical changes involve a transfer of what? Options: A. Water B. heating C. fuel D. energy Which option is correct and why?
The correct answer is: energy.
What term is used to describe animals with three germ layers?
[ "multilayer", "triplegerm", "sporozoans", "triploblasts" ]
triploblasts
Answer the following multiple-choice question. Question: What term is used to describe animals with three germ layers? Options: A. multilayer B. triplegerm C. sporozoans D. triploblasts Which option is correct and why?
The correct answer is: triploblasts.
What is the best room in the home to start saving water?
[ "the bathroom", "the kitchen", "the basement", "the bedroom" ]
the bathroom
Answer the following multiple-choice question. Question: What is the best room in the home to start saving water? Options: A. the bathroom B. the kitchen C. the basement D. the bedroom Which option is correct and why?
The correct answer is: the bathroom.
What can help prevent harm to humans?
[ "knives", "Electric generators", "An emergency lighting source.", "acid", "surgical nitrile gloves", "cancer", "reusing materials", "Electrical energy" ]
surgical nitrile gloves
Answer the following multiple-choice question. Question: What can help prevent harm to humans? Options: A. knives B. Electric generators C. An emergency lighting source. D. acid E. surgical nitrile gloves F. cancer G. reusing materials H. Electrical energy Which option is correct and why?
The correct answer is: surgical nitrile gloves.
John Muir would likely set aside an area for
[ "superheroes and villains", "oaks and chipmunks", "bankers and politicians", "cars and boats" ]
oaks and chipmunks
Answer the following multiple-choice question. Question: John Muir would likely set aside an area for Options: A. superheroes and villains B. oaks and chipmunks C. bankers and politicians D. cars and boats Which option is correct and why?
The correct answer is: oaks and chipmunks.
All of the planets rotate on their axes in the same direction that they move around the sun, except for which one?
[ "venus", "Jupiter", "Saturn", "uranus" ]
uranus
Answer the following multiple-choice question. Question: All of the planets rotate on their axes in the same direction that they move around the sun, except for which one? Options: A. venus B. Jupiter C. Saturn D. uranus Which option is correct and why?
The correct answer is: uranus.
What are 2 common growth patterns of population?
[ "exponential and economical", "exponential and logistic", "organic and inorganic", "migratory and logistic" ]
exponential and logistic
Answer the following multiple-choice question. Question: What are 2 common growth patterns of population? Options: A. exponential and economical B. exponential and logistic C. organic and inorganic D. migratory and logistic Which option is correct and why?
The correct answer is: exponential and logistic.
What does molecules of tRNA bringing amino acids in the correct sequence manufacture?
[ "Cooking", "Energy", "spectrum", "lmestone", "Energy.", "food", "protein", "alleles" ]
protein
Answer the following multiple-choice question. Question: What does molecules of tRNA bringing amino acids in the correct sequence manufacture? Options: A. Cooking B. Energy C. spectrum D. lmestone E. Energy. F. food G. protein H. alleles Which option is correct and why?
The correct answer is: protein.
High areas can be visually represented by:
[ "deep sea", "mountains", "valleys", "basins" ]
mountains
Answer the following multiple-choice question. Question: High areas can be visually represented by: Options: A. deep sea B. mountains C. valleys D. basins Which option is correct and why?
The correct answer is: mountains.
pollution is when humans pollute the environment with
[ "gross stuff", "water", "food", "air" ]
gross stuff
Answer the following multiple-choice question. Question: pollution is when humans pollute the environment with Options: A. gross stuff B. water C. food D. air Which option is correct and why?
The correct answer is: gross stuff.
Which organism lacks ribosomes?
[ "anemia", "Bacteria", "ferns", "honeybees", "PDAs", "genus", "orchids", "graptolites" ]
Bacteria
Answer the following multiple-choice question. Question: Which organism lacks ribosomes? Options: A. anemia B. Bacteria C. ferns D. honeybees E. PDAs F. genus G. orchids H. graptolites Which option is correct and why?
The correct answer is: Bacteria.
What happens to old oceanic crust at convergent boundaries?
[ "emerges", "created", "destroyed", "dissolves" ]
destroyed
Answer the following multiple-choice question. Question: What happens to old oceanic crust at convergent boundaries? Options: A. emerges B. created C. destroyed D. dissolves Which option is correct and why?
The correct answer is: destroyed.
Resistance to pesticides in a population of insects is an example of what?
[ "macroevolution", "microevolution", "redistributions", "extinction" ]
microevolution
Answer the following multiple-choice question. Question: Resistance to pesticides in a population of insects is an example of what? Options: A. macroevolution B. microevolution C. redistributions D. extinction Which option is correct and why?
The correct answer is: microevolution.
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What have afferent information inbound?
[ "fur seals", "energy of moving objects", "electromagnetic energy", "sensory neurons", "Electric devices", "Most invertebrates", "matter vibrating", "Veins and arteries." ]
Most invertebrates
Answer the following multiple-choice question. Question: What have afferent information inbound? Options: A. fur seals B. energy of moving objects C. electromagnetic energy D. sensory neurons E. Electric devices F. Most invertebrates G. matter vibrating H. Veins and arteries. Which option is correct and why?
The correct answer is: Most invertebrates.
What does hypoxic mean?
[ "standard oxygen level", "higher oxygen", "low oxygen", "Oxygen rate" ]
low oxygen
Answer the following multiple-choice question. Question: What does hypoxic mean? Options: A. standard oxygen level B. higher oxygen C. low oxygen D. Oxygen rate Which option is correct and why?
The correct answer is: low oxygen.
Camouflage can be used by animals for hunting
[ "trees", "meals", "air", "water" ]
meals
Answer the following multiple-choice question. Question: Camouflage can be used by animals for hunting Options: A. trees B. meals C. air D. water Which option is correct and why?
The correct answer is: meals.
Which gender carries the eggs?
[ "male", "animals", "transexual", "ducks", "humans", "female", "transgender", "chickens" ]
female
Answer the following multiple-choice question. Question: Which gender carries the eggs? Options: A. male B. animals C. transexual D. ducks E. humans F. female G. transgender H. chickens Which option is correct and why?
The correct answer is: female.
What is required to burn a building?
[ "oxygen", "voltage", "sigh", "ghost", "words", "sunlight", "heat", "power" ]
oxygen
Answer the following multiple-choice question. Question: What is required to burn a building? Options: A. oxygen B. voltage C. sigh D. ghost E. words F. sunlight G. heat H. power Which option is correct and why?
The correct answer is: oxygen.
A chocolate rabbit melts away from
[ "an icy pond", "a freezer", "snow", "a curling iron" ]
a curling iron
Answer the following multiple-choice question. Question: A chocolate rabbit melts away from Options: A. an icy pond B. a freezer C. snow D. a curling iron Which option is correct and why?
The correct answer is: a curling iron.
Milk sold in supermarkets is pasteurized because
[ "all raw milk is safe", "to keep bacteria from getting into the milk after the customer buys it", "the factory farmed cows produce a lot of pus in their milk", "that makes it taste better" ]
to keep bacteria from getting into the milk after the customer buys it
Answer the following multiple-choice question. Question: Milk sold in supermarkets is pasteurized because Options: A. all raw milk is safe B. to keep bacteria from getting into the milk after the customer buys it C. the factory farmed cows produce a lot of pus in their milk D. that makes it taste better Which option is correct and why?
The correct answer is: to keep bacteria from getting into the milk after the customer buys it.
Gas exchange during respiration occurs primarily through what?
[ "activation", "diffusion", "secretion", "vaporization" ]
diffusion
Answer the following multiple-choice question. Question: Gas exchange during respiration occurs primarily through what? Options: A. activation B. diffusion C. secretion D. vaporization Which option is correct and why?
The correct answer is: diffusion.
Destructive interference in waves occurs when what things overlap?
[ "two waves", "three troughs", "two troughs", "three waves" ]
two troughs
Answer the following multiple-choice question. Question: Destructive interference in waves occurs when what things overlap? Options: A. two waves B. three troughs C. two troughs D. three waves Which option is correct and why?
The correct answer is: two troughs.
The name of the cation comes first, followed by the name of the anion, in what kind of compound?
[ "covalent bonds", "ionic compound", "localized compound", "magnetic compound" ]
ionic compound
Answer the following multiple-choice question. Question: The name of the cation comes first, followed by the name of the anion, in what kind of compound? Options: A. covalent bonds B. ionic compound C. localized compound D. magnetic compound Which option is correct and why?
The correct answer is: ionic compound.
What causes an animal population to decrease?
[ "sound pollution", "Greenhouse gases", "Pesticides", "water", "fossil fuels", "Air pollution", "animal diversity", "steroids" ]
Air pollution
Answer the following multiple-choice question. Question: What causes an animal population to decrease? Options: A. sound pollution B. Greenhouse gases C. Pesticides D. water E. fossil fuels F. Air pollution G. animal diversity H. steroids Which option is correct and why?
The correct answer is: Air pollution.
Changes of state of matter do not involve what type of reaction?
[ "mechanical reaction", "gaseous reaction", "radiation", "chemical reaction" ]
chemical reaction
Answer the following multiple-choice question. Question: Changes of state of matter do not involve what type of reaction? Options: A. mechanical reaction B. gaseous reaction C. radiation D. chemical reaction Which option is correct and why?
The correct answer is: chemical reaction.
How many genes are needed for the ability to sense pressure?
[ "DNA", "two", "UV", "12", "RNA", "8", "Eye", "p53" ]
12
Answer the following multiple-choice question. Question: How many genes are needed for the ability to sense pressure? Options: A. DNA B. two C. UV D. 12 E. RNA F. 8 G. Eye H. p53 Which option is correct and why?
The correct answer is: 12.
Strong, stable bonds between carbon atoms produce complex molecules containing chains, branches, and rings; the chemistry of these compounds is called what?
[ "inorganic chemistry", "animal chemistry", "nuclear chemistry", "organic chemistry" ]
organic chemistry
Answer the following multiple-choice question. Question: Strong, stable bonds between carbon atoms produce complex molecules containing chains, branches, and rings; the chemistry of these compounds is called what? Options: A. inorganic chemistry B. animal chemistry C. nuclear chemistry D. organic chemistry Which option is correct and why?
The correct answer is: organic chemistry.
A mineral can be made of an element or a?
[ "Sediment", "cell", "compound", "component" ]
compound
Answer the following multiple-choice question. Question: A mineral can be made of an element or a? Options: A. Sediment B. cell C. compound D. component Which option is correct and why?
The correct answer is: compound.
The Earth receives heat from:
[ "another nearby planet's sun", "the star around which it orbits", "the greenhouse gases in its atmosphere", "solar eclipses occurring frequently" ]
the star around which it orbits
Answer the following multiple-choice question. Question: The Earth receives heat from: Options: A. another nearby planet's sun B. the star around which it orbits C. the greenhouse gases in its atmosphere D. solar eclipses occurring frequently Which option is correct and why?
The correct answer is: the star around which it orbits.
The chromosomes that have a mixture of maternal and paternal sequence are called what?
[ "antibodies", "gene", "DNA", "recombinant" ]
recombinant
Answer the following multiple-choice question. Question: The chromosomes that have a mixture of maternal and paternal sequence are called what? Options: A. antibodies B. gene C. DNA D. recombinant Which option is correct and why?
The correct answer is: recombinant.
What is the complex network of nervous tissue that carries electrical messages throughout the body?
[ "lymphatic system", "circulatory system", "respiratory system", "nervous system" ]
nervous system
Answer the following multiple-choice question. Question: What is the complex network of nervous tissue that carries electrical messages throughout the body? Options: A. lymphatic system B. circulatory system C. respiratory system D. nervous system Which option is correct and why?
The correct answer is: nervous system.
Older plants will most-likely have more leaves than when
[ "they were babies", "Seventeen", "Hot dogs", "botany" ]
they were babies
Answer the following multiple-choice question. Question: Older plants will most-likely have more leaves than when Options: A. they were babies B. Seventeen C. Hot dogs D. botany Which option is correct and why?
The correct answer is: they were babies.
what can be harmed to cause its population to decrease?
[ "death", "snail", "squids", "toads", "elms", "Injury", "goat", "clams" ]
goat
Answer the following multiple-choice question. Question: what can be harmed to cause its population to decrease? Options: A. death B. snail C. squids D. toads E. elms F. Injury G. goat H. clams Which option is correct and why?
The correct answer is: goat.
Gases released during the use of oil causes what?
[ "global warming", "better weather on the earth", "colder weather", "less oily air", "The atmosphere", "flooding", "Temperature", "cleaner air to breathe" ]
global warming
Answer the following multiple-choice question. Question: Gases released during the use of oil causes what? Options: A. global warming B. better weather on the earth C. colder weather D. less oily air E. The atmosphere F. flooding G. Temperature H. cleaner air to breathe Which option is correct and why?
The correct answer is: global warming.
What are the three stages of water?
[ "vapor, earth, internal", "ice, rock, sky", "liquid, underground, frozen", "ice, liquid, vapor" ]
ice, liquid, vapor
Answer the following multiple-choice question. Question: What are the three stages of water? Options: A. vapor, earth, internal B. ice, rock, sky C. liquid, underground, frozen D. ice, liquid, vapor Which option is correct and why?
The correct answer is: ice, liquid, vapor.
What do gametes mate into?
[ "haploid", "fertile", "pollen", "seeds", "zygotes", "eggs", "chromosomes", "offspring" ]
zygotes
Answer the following multiple-choice question. Question: What do gametes mate into? Options: A. haploid B. fertile C. pollen D. seeds E. zygotes F. eggs G. chromosomes H. offspring Which option is correct and why?
The correct answer is: zygotes.
What is the process by which almost all plants make food?
[ "digestion", "photosynthesis", "reactions", "melting" ]
photosynthesis
Answer the following multiple-choice question. Question: What is the process by which almost all plants make food? Options: A. digestion B. photosynthesis C. reactions D. melting Which option is correct and why?
The correct answer is: photosynthesis.
What is the beneficial function to the body of sweating?
[ "calorie loss", "diuretic effect", "pheromone release", "regulating body temperature" ]
regulating body temperature
Answer the following multiple-choice question. Question: What is the beneficial function to the body of sweating? Options: A. calorie loss B. diuretic effect C. pheromone release D. regulating body temperature Which option is correct and why?
The correct answer is: regulating body temperature.
What have woody trunks?
[ "cacti", "evergreens", "plants", "shrub beds", "trees", "fish", "ducks", "elephants" ]
evergreens
Answer the following multiple-choice question. Question: What have woody trunks? Options: A. cacti B. evergreens C. plants D. shrub beds E. trees F. fish G. ducks H. elephants Which option is correct and why?
The correct answer is: evergreens.
Within the chloroplast, synthesis of what takes place in the fluid inside the inner membrane called the stroma?
[ "wheat", "glucose", "fructose", "sugar" ]
sugar
Answer the following multiple-choice question. Question: Within the chloroplast, synthesis of what takes place in the fluid inside the inner membrane called the stroma? Options: A. wheat B. glucose C. fructose D. sugar Which option is correct and why?
The correct answer is: sugar.
What two things does grass require?
[ "Sand and rocks", "Milk and cookies", "bloom time", "Sun and air", "sunlight", "Bodily water", "nutrients", "Darkness and coldness" ]
Sun and air
Answer the following multiple-choice question. Question: What two things does grass require? Options: A. Sand and rocks B. Milk and cookies C. bloom time D. Sun and air E. sunlight F. Bodily water G. nutrients H. Darkness and coldness Which option is correct and why?
The correct answer is: Sun and air.
The more matter a planet is made up, the more likely other bodies are to
[ "Triangle it", "kiss it", "punch it", "be dragged in" ]
be dragged in
Answer the following multiple-choice question. Question: The more matter a planet is made up, the more likely other bodies are to Options: A. Triangle it B. kiss it C. punch it D. be dragged in Which option is correct and why?
The correct answer is: be dragged in.
Give an example of benthos that live near vents on the deep ocean floor.
[ "tubeworms", "arthropods", "amphipods", "crustaceans" ]
tubeworms
Answer the following multiple-choice question. Question: Give an example of benthos that live near vents on the deep ocean floor. Options: A. tubeworms B. arthropods C. amphipods D. crustaceans Which option is correct and why?
The correct answer is: tubeworms.
A ferret darting around a space in the wild in a panic is likely
[ "grooming itself", "eluding foe", "winning marathons", "laying eggs" ]
eluding foe
Answer the following multiple-choice question. Question: A ferret darting around a space in the wild in a panic is likely Options: A. grooming itself B. eluding foe C. winning marathons D. laying eggs Which option is correct and why?
The correct answer is: eluding foe.
The pull of gravity on objects increase as what happens?
[ "the object gets further away", "the object is pulled in circles", "gravity is heavier on an object", "the object is brought closer" ]
the object is brought closer
Answer the following multiple-choice question. Question: The pull of gravity on objects increase as what happens? Options: A. the object gets further away B. the object is pulled in circles C. gravity is heavier on an object D. the object is brought closer Which option is correct and why?
The correct answer is: the object is brought closer.
Most turtle bodies are covered by a special bony or cartilaginous shell developed from their what?
[ "spines", "fins", "ribs", "tails" ]
ribs
Answer the following multiple-choice question. Question: Most turtle bodies are covered by a special bony or cartilaginous shell developed from their what? Options: A. spines B. fins C. ribs D. tails Which option is correct and why?
The correct answer is: ribs.
Which of the following is true?
[ "switching from a truck to a moped will save gas", "switching from a moped to a truck will save gas", "switching from a car to an SUV will save gas", "switching from a car to a truck will save gas" ]
switching from a truck to a moped will save gas
Answer the following multiple-choice question. Question: Which of the following is true? Options: A. switching from a truck to a moped will save gas B. switching from a moped to a truck will save gas C. switching from a car to an SUV will save gas D. switching from a car to a truck will save gas Which option is correct and why?
The correct answer is: switching from a truck to a moped will save gas.
Most reptiles reproduce sexually and have what type of fertilization?
[ "additional", "internal", "mechanical", "external" ]
internal
Answer the following multiple-choice question. Question: Most reptiles reproduce sexually and have what type of fertilization? Options: A. additional B. internal C. mechanical D. external Which option is correct and why?
The correct answer is: internal.
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When bacteria enter the bloodstream, the result is what condition?
[ "hypoxia", "diarrhea", "septicemia", "hypertension" ]
septicemia
Answer the following multiple-choice question. Question: When bacteria enter the bloodstream, the result is what condition? Options: A. hypoxia B. diarrhea C. septicemia D. hypertension Which option is correct and why?
The correct answer is: septicemia.
Silver nitrate on hardened silicon will force light to
[ "refract", "scatter", "become hot", "dissipate" ]
refract
Answer the following multiple-choice question. Question: Silver nitrate on hardened silicon will force light to Options: A. refract B. scatter C. become hot D. dissipate Which option is correct and why?
The correct answer is: refract.
The theory of evolution by what (and other processes) explains both the diversity of organisms and how populations of organisms change over time?
[ "characteristic selection", "genocide", "natural evolution", "natural selection" ]
natural selection
Answer the following multiple-choice question. Question: The theory of evolution by what (and other processes) explains both the diversity of organisms and how populations of organisms change over time? Options: A. characteristic selection B. genocide C. natural evolution D. natural selection Which option is correct and why?
The correct answer is: natural selection.
Adding a solute does what to the boiling point of a pure solvent?
[ "silences it", "no effect", "reduces it", "increases it" ]
increases it
Answer the following multiple-choice question. Question: Adding a solute does what to the boiling point of a pure solvent? Options: A. silences it B. no effect C. reduces it D. increases it Which option is correct and why?
The correct answer is: increases it.
If a tree is cut down what will happen to it?
[ "vitality extinguishing", "growth", "vigor", "life" ]
vitality extinguishing
Answer the following multiple-choice question. Question: If a tree is cut down what will happen to it? Options: A. vitality extinguishing B. growth C. vigor D. life Which option is correct and why?
The correct answer is: vitality extinguishing.
What is the protein that carries iron that binds with oxygen in red blood cells?
[ "potassium", "hemoglobin", "insulin", "keratin" ]
hemoglobin
Answer the following multiple-choice question. Question: What is the protein that carries iron that binds with oxygen in red blood cells? Options: A. potassium B. hemoglobin C. insulin D. keratin Which option is correct and why?
The correct answer is: hemoglobin.
The oxygen regions of the water molecules have what kind of charge?
[ "certain", "positive", "negative", "neutral" ]
negative
Answer the following multiple-choice question. Question: The oxygen regions of the water molecules have what kind of charge? Options: A. certain B. positive C. negative D. neutral Which option is correct and why?
The correct answer is: negative.
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How many layers of phospholipids does the cell membrane contain?
[ "two", "five", "four", "three" ]
two
Answer the following multiple-choice question. Question: How many layers of phospholipids does the cell membrane contain? Options: A. two B. five C. four D. three Which option is correct and why?
The correct answer is: two.
What are needed to oxidize the noble gases to form compounds in positive oxidation states?
[ "metal oxidants", "protein oxidants", "potent oxidants", "bacteria oxidants" ]
potent oxidants
Answer the following multiple-choice question. Question: What are needed to oxidize the noble gases to form compounds in positive oxidation states? Options: A. metal oxidants B. protein oxidants C. potent oxidants D. bacteria oxidants Which option is correct and why?
The correct answer is: potent oxidants.
What is a flower's purpose?
[ "spread flower seeds", "Create new plants", "Please humans", "plant reproduction", "staying warm", "Start wars", "Reproduction", "Make people feel good" ]
Create new plants
Answer the following multiple-choice question. Question: What is a flower's purpose? Options: A. spread flower seeds B. Create new plants C. Please humans D. plant reproduction E. staying warm F. Start wars G. Reproduction H. Make people feel good Which option is correct and why?
The correct answer is: Create new plants.
How can you calculate the density of matter?
[ "by dividing its volume by its mass", "by multiplying its mass by its volume", "by subtracting mass from volume", "by dividing its mass by its volume" ]
by dividing its mass by its volume
Answer the following multiple-choice question. Question: How can you calculate the density of matter? Options: A. by dividing its volume by its mass B. by multiplying its mass by its volume C. by subtracting mass from volume D. by dividing its mass by its volume Which option is correct and why?
The correct answer is: by dividing its mass by its volume.
Terminal pods are located at the end of what?
[ "fruits", "spines", "stems", "leaves" ]
stems
Answer the following multiple-choice question. Question: Terminal pods are located at the end of what? Options: A. fruits B. spines C. stems D. leaves Which option is correct and why?
The correct answer is: stems.
What is a series of processes that remove unwanted substances from water called?
[ "water treatment", "water filtration", "water dilution", "water cleaning" ]
water treatment
Answer the following multiple-choice question. Question: What is a series of processes that remove unwanted substances from water called? Options: A. water treatment B. water filtration C. water dilution D. water cleaning Which option is correct and why?
The correct answer is: water treatment.
Seals have an instinct to give birth in the same area every year. Where do seals give birth normally?
[ "Jupiter", "space", "waterfronts", "houses" ]
waterfronts
Answer the following multiple-choice question. Question: Seals have an instinct to give birth in the same area every year. Where do seals give birth normally? Options: A. Jupiter B. space C. waterfronts D. houses Which option is correct and why?
The correct answer is: waterfronts.
A comet is falling from the sky, a boy is watching and can tell that the light is brightest
[ "when it is far away", "when it is under water", "when it is upside down", "when it is about to crash" ]
when it is about to crash
Answer the following multiple-choice question. Question: A comet is falling from the sky, a boy is watching and can tell that the light is brightest Options: A. when it is far away B. when it is under water C. when it is upside down D. when it is about to crash Which option is correct and why?
The correct answer is: when it is about to crash.
Evolution occurs in response to what in life?
[ "static events", "global warming", "that material's properties", "changing phenomenon", "major threat to health", "changing tides", "Animal survival", "isolated events" ]
changing phenomenon
Answer the following multiple-choice question. Question: Evolution occurs in response to what in life? Options: A. static events B. global warming C. that material's properties D. changing phenomenon E. major threat to health F. changing tides G. Animal survival H. isolated events Which option is correct and why?
The correct answer is: changing phenomenon.
Ethyl alcohol can be made by distilling and fermenting simple sugars from
[ "a starchy slurry", "wet sand", "dry sawdust", "rice fields" ]
a starchy slurry
Answer the following multiple-choice question. Question: Ethyl alcohol can be made by distilling and fermenting simple sugars from Options: A. a starchy slurry B. wet sand C. dry sawdust D. rice fields Which option is correct and why?
The correct answer is: a starchy slurry.
More dirt and sand gets deposited in a flat area near a river whenever
[ "the river is hit with an extremely large amount of precipitation in a day", "a deer is hunted on the river bank", "birds fly over the area", "a helicopter flies too low over the land" ]
the river is hit with an extremely large amount of precipitation in a day
Answer the following multiple-choice question. Question: More dirt and sand gets deposited in a flat area near a river whenever Options: A. the river is hit with an extremely large amount of precipitation in a day B. a deer is hunted on the river bank C. birds fly over the area D. a helicopter flies too low over the land Which option is correct and why?
The correct answer is: the river is hit with an extremely large amount of precipitation in a day.
what are monophyletic with four limbs ?
[ "animals", "mammals", "amphibians", "warm-blooded", "Most plants", "alpacas", "Conifers", "graptolites" ]
amphibians
Answer the following multiple-choice question. Question: what are monophyletic with four limbs ? Options: A. animals B. mammals C. amphibians D. warm-blooded E. Most plants F. alpacas G. Conifers H. graptolites Which option is correct and why?
The correct answer is: amphibians.
Algae is a promising alternative to traditional crops for what type of fuels?
[ "non-renewable", "fossil", "fertilizer", "biofuel" ]
biofuel
Answer the following multiple-choice question. Question: Algae is a promising alternative to traditional crops for what type of fuels? Options: A. non-renewable B. fossil C. fertilizer D. biofuel Which option is correct and why?
The correct answer is: biofuel.
The acidity of a solution is typically assessed experimentally by measurement of its what?
[ "density", "color", "mass", "ph" ]
ph
Answer the following multiple-choice question. Question: The acidity of a solution is typically assessed experimentally by measurement of its what? Options: A. density B. color C. mass D. ph Which option is correct and why?
The correct answer is: ph.
What pulls objects around the sun?
[ "Oxygen", "cycles", "wind", "Energy.", "energy", "Gravity", "h2o", "Atmosphere" ]
Gravity
Answer the following multiple-choice question. Question: What pulls objects around the sun? Options: A. Oxygen B. cycles C. wind D. Energy. E. energy F. Gravity G. h2o H. Atmosphere Which option is correct and why?
The correct answer is: Gravity.
What do humans use to see an image?
[ "keratin", "light", "heat", "fibers", "calcite", "mussels", "photons", "Neuron." ]
light
Answer the following multiple-choice question. Question: What do humans use to see an image? Options: A. keratin B. light C. heat D. fibers E. calcite F. mussels G. photons H. Neuron. Which option is correct and why?
The correct answer is: light.
Why animal may use a rock as shelter
[ "Centipede", "Dolphin", "Seagull", "Dog" ]
Centipede
Answer the following multiple-choice question. Question: Why animal may use a rock as shelter Options: A. Centipede B. Dolphin C. Seagull D. Dog Which option is correct and why?
The correct answer is: Centipede.
Like a runner passing a baton, the transmission of nerve impulses between neurons depends on what?
[ "enzymes", "neurotransmitters", "axons", "receptors" ]
neurotransmitters
Answer the following multiple-choice question. Question: Like a runner passing a baton, the transmission of nerve impulses between neurons depends on what? Options: A. enzymes B. neurotransmitters C. axons D. receptors Which option is correct and why?
The correct answer is: neurotransmitters.
What happens to half of Earth when it tilts towards the Sun ?
[ "it receives more sunlight", "it melts", "movement of tectonic plates", "it receives less sunlight", "tectonic plates being pushed together", "heat is produced", "It used to be covered by water", "it receives no sunlight" ]
it receives more sunlight
Answer the following multiple-choice question. Question: What happens to half of Earth when it tilts towards the Sun ? Options: A. it receives more sunlight B. it melts C. movement of tectonic plates D. it receives less sunlight E. tectonic plates being pushed together F. heat is produced G. It used to be covered by water H. it receives no sunlight Which option is correct and why?
The correct answer is: it receives more sunlight.
When a solute dissolves into a solvent what is that called?
[ "mixing", "solubility", "viscosity", "enthalpy" ]
enthalpy
Answer the following multiple-choice question. Question: When a solute dissolves into a solvent what is that called? Options: A. mixing B. solubility C. viscosity D. enthalpy Which option is correct and why?
The correct answer is: enthalpy.
An example of beta decay is the emission of an electron by a carbon-14 what?
[ "ion", "molecules", "protons", "nucleus" ]
nucleus
Answer the following multiple-choice question. Question: An example of beta decay is the emission of an electron by a carbon-14 what? Options: A. ion B. molecules C. protons D. nucleus Which option is correct and why?
The correct answer is: nucleus.
Bacteria causes what to be harmed?
[ "plants", "electronics", "fossils", "humans", "animals", "viruses", "food", "the skin" ]
plants
Answer the following multiple-choice question. Question: Bacteria causes what to be harmed? Options: A. plants B. electronics C. fossils D. humans E. animals F. viruses G. food H. the skin Which option is correct and why?
The correct answer is: plants.
what floor do organisms cluster around hydrothermal vents on?
[ "Pacific", "small ponds", "ground", "limestone", "sandstone", "loose soil", "atmosphere", "crust" ]
Pacific
Answer the following multiple-choice question. Question: what floor do organisms cluster around hydrothermal vents on? Options: A. Pacific B. small ponds C. ground D. limestone E. sandstone F. loose soil G. atmosphere H. crust Which option is correct and why?
The correct answer is: Pacific.
What effect in the atmosphere ensures that the earth maintains the correct temperature to support life?
[ "smog effect", "ozone effect", "coriolis effect", "greenhouse effect" ]
greenhouse effect
Answer the following multiple-choice question. Question: What effect in the atmosphere ensures that the earth maintains the correct temperature to support life? Options: A. smog effect B. ozone effect C. coriolis effect D. greenhouse effect Which option is correct and why?
The correct answer is: greenhouse effect.
Which only needs sparse water?
[ "fish", "frogs", "whales", "chuckwallas" ]
chuckwallas
Answer the following multiple-choice question. Question: Which only needs sparse water? Options: A. fish B. frogs C. whales D. chuckwallas Which option is correct and why?
The correct answer is: chuckwallas.
What would you call a relationship where the bacteria benefit and and the other organism is harmed?
[ "fungi", "pathology", "symbiotic", "parasitism" ]
parasitism
Answer the following multiple-choice question. Question: What would you call a relationship where the bacteria benefit and and the other organism is harmed? Options: A. fungi B. pathology C. symbiotic D. parasitism Which option is correct and why?
The correct answer is: parasitism.
What do we call a peptide hormone composed of nine amino acids that lowers blood pressure?
[ "parcnid", "bufotenin", "bradykinin", "angiotensin" ]
bradykinin
Answer the following multiple-choice question. Question: What do we call a peptide hormone composed of nine amino acids that lowers blood pressure? Options: A. parcnid B. bufotenin C. bradykinin D. angiotensin Which option is correct and why?
The correct answer is: bradykinin.
Screws and bolts are needed to do what with a bike?
[ "eat it", "cry", "nothing", "construct it" ]
construct it
Answer the following multiple-choice question. Question: Screws and bolts are needed to do what with a bike? Options: A. eat it B. cry C. nothing D. construct it Which option is correct and why?
The correct answer is: construct it.
What is the term for the most abundant species in a community, characterized by high competitive abilities?
[ "dominant species", "keystone species", "carnivores", "merging species" ]
dominant species
Answer the following multiple-choice question. Question: What is the term for the most abundant species in a community, characterized by high competitive abilities? Options: A. dominant species B. keystone species C. carnivores D. merging species Which option is correct and why?
The correct answer is: dominant species.
In mammals, air is warmed and humidified in what?
[ "nasal cavity", "lungs", "stomach", "esophagus" ]
nasal cavity
Answer the following multiple-choice question. Question: In mammals, air is warmed and humidified in what? Options: A. nasal cavity B. lungs C. stomach D. esophagus Which option is correct and why?
The correct answer is: nasal cavity.
Elements below the second period, such as silicon, do not form what as readily as second-period elements, and when they do form, they are weaker than those formed by second-period elements?
[ "magnetic bonds", "k. bonds", "covalent bonds", "n bonds" ]
n bonds
Answer the following multiple-choice question. Question: Elements below the second period, such as silicon, do not form what as readily as second-period elements, and when they do form, they are weaker than those formed by second-period elements? Options: A. magnetic bonds B. k. bonds C. covalent bonds D. n bonds Which option is correct and why?
The correct answer is: n bonds.
What contains most of the structures found in skin?
[ "epidermis", "dermis", "subcutaneous layer", "basal layer" ]
dermis
Answer the following multiple-choice question. Question: What contains most of the structures found in skin? Options: A. epidermis B. dermis C. subcutaneous layer D. basal layer Which option is correct and why?
The correct answer is: dermis.
What has a backbone?
[ "Man", "invertebrates", "humans", "insects", "toads", "birds", "plants", "bacteria" ]
birds
Answer the following multiple-choice question. Question: What has a backbone? Options: A. Man B. invertebrates C. humans D. insects E. toads F. birds G. plants H. bacteria Which option is correct and why?
The correct answer is: birds.
What do leaves form for the rest of the plant?
[ "hard outer covering", "circulatory systems", "peachleaf willow", "carbohydrates", "inactive", "Green beans", "Change colors", "support" ]
carbohydrates
Answer the following multiple-choice question. Question: What do leaves form for the rest of the plant? Options: A. hard outer covering B. circulatory systems C. peachleaf willow D. carbohydrates E. inactive F. Green beans G. Change colors H. support Which option is correct and why?
The correct answer is: carbohydrates.
What types of energy is released during a chemical reaction?
[ "human, magnetic, electrical", "temperature , electricity , light", "heat, electricity, light", "magnetism, electricity, light" ]
heat, electricity, light
Answer the following multiple-choice question. Question: What types of energy is released during a chemical reaction? Options: A. human, magnetic, electrical B. temperature , electricity , light C. heat, electricity, light D. magnetism, electricity, light Which option is correct and why?
The correct answer is: heat, electricity, light.
Boiling can make water less what to drink?
[ "germs", "safe", "energy", "pure", "harmful", "dangerous", "wet", "heat" ]
harmful
Answer the following multiple-choice question. Question: Boiling can make water less what to drink? Options: A. germs B. safe C. energy D. pure E. harmful F. dangerous G. wet H. heat Which option is correct and why?
The correct answer is: harmful.
What can be used to make debris?
[ "erosion", "rivers", "a hammer", "heat", "wind", "water pump", "c-clamp", "screwdriver" ]
a hammer
Answer the following multiple-choice question. Question: What can be used to make debris? Options: A. erosion B. rivers C. a hammer D. heat E. wind F. water pump G. c-clamp H. screwdriver Which option is correct and why?
The correct answer is: a hammer.
Jackrabbits live in very hot environments, but are able to stay cool because their long ears help
[ "releasing warmth", "sing songs", "make eggs", "change tires" ]
releasing warmth
Answer the following multiple-choice question. Question: Jackrabbits live in very hot environments, but are able to stay cool because their long ears help Options: A. releasing warmth B. sing songs C. make eggs D. change tires Which option is correct and why?
The correct answer is: releasing warmth.
A person is celebrating a new baby and family is happily celebrating as well. The family is glad that the person who had the baby is
[ "a corpse", "a child", "a monster", "an adult" ]
an adult
Answer the following multiple-choice question. Question: A person is celebrating a new baby and family is happily celebrating as well. The family is glad that the person who had the baby is Options: A. a corpse B. a child C. a monster D. an adult Which option is correct and why?
The correct answer is: an adult.
What can cause an uncontrolled growth and spread of abnormal cells?
[ "smoking cigarettes", "some foods", "Pesticides", "cigarettes", "smoking", "some religions", "some viruses", "some books" ]
some viruses
Answer the following multiple-choice question. Question: What can cause an uncontrolled growth and spread of abnormal cells? Options: A. smoking cigarettes B. some foods C. Pesticides D. cigarettes E. smoking F. some religions G. some viruses H. some books Which option is correct and why?
The correct answer is: some viruses.
Regulation of endocrine depends on the hypothalmus and what other gland?
[ "salivary", "thyroid", "adrenal", "pituitary" ]
pituitary
Answer the following multiple-choice question. Question: Regulation of endocrine depends on the hypothalmus and what other gland? Options: A. salivary B. thyroid C. adrenal D. pituitary Which option is correct and why?
The correct answer is: pituitary.