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What is the only substance on earth that is stable in all three states?
[ "carbon", "air", "mercury", "water" ]
water
Answer the following multiple-choice question. Question: What is the only substance on earth that is stable in all three states? Options: A. carbon B. air C. mercury D. water Which option is correct and why?
The correct answer is: water.
D
How do all musical instruments create sound?
[ "conduction", "vibration", "stimulation", "condensation" ]
vibration
Answer the following multiple-choice question. Question: How do all musical instruments create sound? Options: A. conduction B. vibration C. stimulation D. condensation Which option is correct and why?
The correct answer is: vibration.
B
What measures the force of gravity pulling on an object?
[ "weight", "volume", "density", "velocity" ]
weight
Answer the following multiple-choice question. Question: What measures the force of gravity pulling on an object? Options: A. weight B. volume C. density D. velocity Which option is correct and why?
The correct answer is: weight.
A
Food often spoils when stored in an environment that is warm and __.
[ "has great air circulation", "dry", "mild", "wet", "liquid", "cold", "heat", "moist" ]
moist
Answer the following multiple-choice question. Question: Food often spoils when stored in an environment that is warm and __. Options: A. has great air circulation B. dry C. mild D. wet E. liquid F. cold G. heat H. moist Which option is correct and why?
The correct answer is: moist.
A
What's used by migrating animals to find locations?
[ "global positioning system satellites", "a sense of smell", "our planet's magnetic patterns", "the stars in the night sky" ]
our planet's magnetic patterns
Answer the following multiple-choice question. Question: What's used by migrating animals to find locations? Options: A. global positioning system satellites B. a sense of smell C. our planet's magnetic patterns D. the stars in the night sky Which option is correct and why?
The correct answer is: our planet's magnetic patterns.
C
What field of science seeks to explain how traits are passed on from one generation to the next?
[ "biochemistry", "genetics", "zoology", "quantum physics" ]
genetics
Answer the following multiple-choice question. Question: What field of science seeks to explain how traits are passed on from one generation to the next? Options: A. biochemistry B. genetics C. zoology D. quantum physics Which option is correct and why?
The correct answer is: genetics.
B
What does decomposition do to plants?
[ "Helps them grow", "Distracts them", "Scares them", "nutrients", "Panics them", "duplicate itself", "It becomes dormant", "Decrease bodily water" ]
Helps them grow
Answer the following multiple-choice question. Question: What does decomposition do to plants? Options: A. Helps them grow B. Distracts them C. Scares them D. nutrients E. Panics them F. duplicate itself G. It becomes dormant H. Decrease bodily water Which option is correct and why?
The correct answer is: Helps them grow.
A
What does an ammeter measure the flow of?
[ "current through a circuit", "wind", "magnetic fields", "water under pressure" ]
current through a circuit
Answer the following multiple-choice question. Question: What does an ammeter measure the flow of? Options: A. current through a circuit B. wind C. magnetic fields D. water under pressure Which option is correct and why?
The correct answer is: current through a circuit.
A
Surface tension comes from the fact that particles at the surface of a liquid do not experience interactions from all directions which leads to what on the surface?
[ "imbalance of forces", "waves", "floating particles", "degradation of forces" ]
imbalance of forces
Answer the following multiple-choice question. Question: Surface tension comes from the fact that particles at the surface of a liquid do not experience interactions from all directions which leads to what on the surface? Options: A. imbalance of forces B. waves C. floating particles D. degradation of forces Which option is correct and why?
The correct answer is: imbalance of forces.
A
What term describes the amount of material present in an object?
[ "weight", "mass", "volume", "density" ]
mass
Answer the following multiple-choice question. Question: What term describes the amount of material present in an object? Options: A. weight B. mass C. volume D. density Which option is correct and why?
The correct answer is: mass.
B
Which of these is less likely to cause pollution
[ "mountain bike", "motor bike", "dirt bike", "chopper" ]
mountain bike
Answer the following multiple-choice question. Question: Which of these is less likely to cause pollution Options: A. mountain bike B. motor bike C. dirt bike D. chopper Which option is correct and why?
The correct answer is: mountain bike.
A
What kind of impact does Crohn's have on an organism?
[ "liver cancer", "mutations", "negative", "neutral", "growth", "uplifting", "positive", "disease" ]
negative
Answer the following multiple-choice question. Question: What kind of impact does Crohn's have on an organism? Options: A. liver cancer B. mutations C. negative D. neutral E. growth F. uplifting G. positive H. disease Which option is correct and why?
The correct answer is: negative.
C
crumple means change shape from smooth into
[ "lots of folds and ridges", "extra smooth all over", "a pile of burned ash", "a wet mushy pike" ]
lots of folds and ridges
Answer the following multiple-choice question. Question: crumple means change shape from smooth into Options: A. lots of folds and ridges B. extra smooth all over C. a pile of burned ash D. a wet mushy pike Which option is correct and why?
The correct answer is: lots of folds and ridges.
A
In addition to a vibrating electric field what does an electromagnetic wave consist of?
[ "radiation field", "molecular field", "gravitational field", "magnetic field" ]
magnetic field
Answer the following multiple-choice question. Question: In addition to a vibrating electric field what does an electromagnetic wave consist of? Options: A. radiation field B. molecular field C. gravitational field D. magnetic field Which option is correct and why?
The correct answer is: magnetic field.
D
When the game console's power cable was attached to the wall, electricity ended up in
[ "the plug", "the power cable", "the wall", "the game console" ]
the game console
Answer the following multiple-choice question. Question: When the game console's power cable was attached to the wall, electricity ended up in Options: A. the plug B. the power cable C. the wall D. the game console Which option is correct and why?
The correct answer is: the game console.
D
the gravitational pull of the Moon on Earth's oceans pumps what into the oceans?
[ "rivers", "oxygen", "saltwater", "seaweed", "energy", "water", "fish", "h2o" ]
energy
Answer the following multiple-choice question. Question: the gravitational pull of the Moon on Earth's oceans pumps what into the oceans? Options: A. rivers B. oxygen C. saltwater D. seaweed E. energy F. water G. fish H. h2o Which option is correct and why?
The correct answer is: energy.
E
What sense differences in temperature or pain?
[ "Veins and arteries.", "the skin", "Merkel's discs", "movie discs", "frontal zones", "cd discs", "sensory neurons", "sound discs" ]
Merkel's discs
Answer the following multiple-choice question. Question: What sense differences in temperature or pain? Options: A. Veins and arteries. B. the skin C. Merkel's discs D. movie discs E. frontal zones F. cd discs G. sensory neurons H. sound discs Which option is correct and why?
The correct answer is: Merkel's discs.
C
what can cause disease
[ "bacteria", "medicine", "healthcare", "Pesticides", "viruses", "influenza", "toxins", "fish" ]
bacteria
Answer the following multiple-choice question. Question: what can cause disease Options: A. bacteria B. medicine C. healthcare D. Pesticides E. viruses F. influenza G. toxins H. fish Which option is correct and why?
The correct answer is: bacteria.
A
What part of a chromosome exists in different states of condensation at different times?
[ "the chromatin", "chromonema", "centromeres", "pellicle" ]
the chromatin
Answer the following multiple-choice question. Question: What part of a chromosome exists in different states of condensation at different times? Options: A. the chromatin B. chromonema C. centromeres D. pellicle Which option is correct and why?
The correct answer is: the chromatin.
A
What allows for budding?
[ "By wind and rain", "peachleaf willow", "Light passing through water", "Veins and arteries.", "alternation of generations", "photosynthesis", "Something that makes plants green", "the looseness of soil" ]
alternation of generations
Answer the following multiple-choice question. Question: What allows for budding? Options: A. By wind and rain B. peachleaf willow C. Light passing through water D. Veins and arteries. E. alternation of generations F. photosynthesis G. Something that makes plants green H. the looseness of soil Which option is correct and why?
The correct answer is: alternation of generations.
E
What kingdom in the domain eukarya that includes molds, mushrooms, and yeasts called?
[ "acids", "proteins", "bacteria", "fungi" ]
fungi
Answer the following multiple-choice question. Question: What kingdom in the domain eukarya that includes molds, mushrooms, and yeasts called? Options: A. acids B. proteins C. bacteria D. fungi Which option is correct and why?
The correct answer is: fungi.
D
Organisms interact with each other and what else?
[ "physical environment", "outside enviroment", "atmospheric environment", "thermal environment" ]
physical environment
Answer the following multiple-choice question. Question: Organisms interact with each other and what else? Options: A. physical environment B. outside enviroment C. atmospheric environment D. thermal environment Which option is correct and why?
The correct answer is: physical environment.
A
Acceleration is defined as the change in what over time?
[ "mass", "velocity", "direction", "volume" ]
velocity
Answer the following multiple-choice question. Question: Acceleration is defined as the change in what over time? Options: A. mass B. velocity C. direction D. volume Which option is correct and why?
The correct answer is: velocity.
B
what gets food by eating other living things?
[ "humans", "a fish", "people", "fungi", "clouds", "animals", "all plants", "h2o" ]
animals
Answer the following multiple-choice question. Question: what gets food by eating other living things? Options: A. humans B. a fish C. people D. fungi E. clouds F. animals G. all plants H. h2o Which option is correct and why?
The correct answer is: animals.
A
What is something that cannot reproduce by itself?
[ "Leptospirosis", "dangerous", "ferns", "fungi", "bacteria", "Influenza", "acetic acid", "anemia" ]
Influenza
Answer the following multiple-choice question. Question: What is something that cannot reproduce by itself? Options: A. Leptospirosis B. dangerous C. ferns D. fungi E. bacteria F. Influenza G. acetic acid H. anemia Which option is correct and why?
The correct answer is: Influenza.
A
Controlled burns help prevent wildfires by cleaning up
[ "dead foliage", "animal droppings", "wasp nests", "air pollution" ]
dead foliage
Answer the following multiple-choice question. Question: Controlled burns help prevent wildfires by cleaning up Options: A. dead foliage B. animal droppings C. wasp nests D. air pollution Which option is correct and why?
The correct answer is: dead foliage.
A
What is the term for a resource that is used in a way that meets the needs of the present without keeping future generations from meeting their needs?
[ "innovative", "structural", "tolerable", "sustainable" ]
sustainable
Answer the following multiple-choice question. Question: What is the term for a resource that is used in a way that meets the needs of the present without keeping future generations from meeting their needs? Options: A. innovative B. structural C. tolerable D. sustainable Which option is correct and why?
The correct answer is: sustainable.
D
What does carpooling lead to?
[ "animal transport", "lowered energy cost", "Less pollution", "population movement", "Less time", "competition", "More cars", "More roads" ]
Less pollution
Answer the following multiple-choice question. Question: What does carpooling lead to? Options: A. animal transport B. lowered energy cost C. Less pollution D. population movement E. Less time F. competition G. More cars H. More roads Which option is correct and why?
The correct answer is: Less pollution.
C
Marine species live mainly in areas teeming with what?
[ "dust", "matter", "growth", "life", "mammals", "energy", "waves", "spiders" ]
life
Answer the following multiple-choice question. Question: Marine species live mainly in areas teeming with what? Options: A. dust B. matter C. growth D. life E. mammals F. energy G. waves H. spiders Which option is correct and why?
The correct answer is: life.
D
If food is not eaten immediately for energy, then food can be stored in what?
[ "cellulose", "loose soil", "barrel", "excretory", "Collagen", "body water", "pottery", "Winter" ]
pottery
Answer the following multiple-choice question. Question: If food is not eaten immediately for energy, then food can be stored in what? Options: A. cellulose B. loose soil C. barrel D. excretory E. Collagen F. body water G. pottery H. Winter Which option is correct and why?
The correct answer is: pottery.
A
what can cause people to become distracted?
[ "intelligence", "smoking", "Samsung", "a doorbell", "growing hair", "hydrogen", "cigarettes", "a chime" ]
Samsung
Answer the following multiple-choice question. Question: what can cause people to become distracted? Options: A. intelligence B. smoking C. Samsung D. a doorbell E. growing hair F. hydrogen G. cigarettes H. a chime Which option is correct and why?
The correct answer is: Samsung.
C
What means that rocks are eroded down again?
[ "flooding", "rainfall", "salt and water.", "weathering", "freezing", "chilling", "frosting", "mines" ]
weathering
Answer the following multiple-choice question. Question: What means that rocks are eroded down again? Options: A. flooding B. rainfall C. salt and water. D. weathering E. freezing F. chilling G. frosting H. mines Which option is correct and why?
The correct answer is: weathering.
D
Organisms living in marine biomes must be adapted to what in the water?
[ "hydrochloric acid", "toxic chemicals", "It helps them survive", "the environment", "raising their temperature", "nothing", "Deposition.", "chemical compound NaCl" ]
chemical compound NaCl
Answer the following multiple-choice question. Question: Organisms living in marine biomes must be adapted to what in the water? Options: A. hydrochloric acid B. toxic chemicals C. It helps them survive D. the environment E. raising their temperature F. nothing G. Deposition. H. chemical compound NaCl Which option is correct and why?
The correct answer is: chemical compound NaCl.
A
Due to camouflage, you are less likely to be able to see a polar bear in
[ "a church", "the zoo", "alaska", "africa" ]
alaska
Answer the following multiple-choice question. Question: Due to camouflage, you are less likely to be able to see a polar bear in Options: A. a church B. the zoo C. alaska D. africa Which option is correct and why?
The correct answer is: alaska.
C
Mammals are
[ "animal transport", "Heterotrophs", "parasites", "fur and fat", "animals", "pathogens", "producers", "more abundant" ]
Heterotrophs
Answer the following multiple-choice question. Question: Mammals are Options: A. animal transport B. Heterotrophs C. parasites D. fur and fat E. animals F. pathogens G. producers H. more abundant Which option is correct and why?
The correct answer is: Heterotrophs.
B
Much of protein transport in a cell requires what?
[ "protons", "recycling", "oxygen", "energy", "atoms", "Nutrients", "walls", "Energy." ]
energy
Answer the following multiple-choice question. Question: Much of protein transport in a cell requires what? Options: A. protons B. recycling C. oxygen D. energy E. atoms F. Nutrients G. walls H. Energy. Which option is correct and why?
The correct answer is: energy.
D
an emotionally devastating disease occurs when the cell cycle is what?
[ "no longer regulated", "gone forever", "it's bodily water decreases", "competing for resources", "It decreases", "major threat to health", "Plant growth is reduced", "a lot of human deaths" ]
no longer regulated
Answer the following multiple-choice question. Question: an emotionally devastating disease occurs when the cell cycle is what? Options: A. no longer regulated B. gone forever C. it's bodily water decreases D. competing for resources E. It decreases F. major threat to health G. Plant growth is reduced H. a lot of human deaths Which option is correct and why?
The correct answer is: no longer regulated.
A
where can conserving water be used for survival in?
[ "our planet", "oceans", "rivers", "deserts", "watershed", "clouds", "Mountains", "soils" ]
deserts
Answer the following multiple-choice question. Question: where can conserving water be used for survival in? Options: A. our planet B. oceans C. rivers D. deserts E. watershed F. clouds G. Mountains H. soils Which option is correct and why?
The correct answer is: deserts.
D
What two things determine how much kinetic energy an object has?
[ "its mass and velocity", "its weight and volume", "its mass and direction", "its height and speed" ]
its mass and velocity
Answer the following multiple-choice question. Question: What two things determine how much kinetic energy an object has? Options: A. its mass and velocity B. its weight and volume C. its mass and direction D. its height and speed Which option is correct and why?
The correct answer is: its mass and velocity.
A
what do stems grow towards?
[ "roots", "flowers", "water", "light", "seeds", "dark", "the sun", "Trees" ]
light
Answer the following multiple-choice question. Question: what do stems grow towards? Options: A. roots B. flowers C. water D. light E. seeds F. dark G. the sun H. Trees Which option is correct and why?
The correct answer is: light.
D
plants live just about everywhere where?
[ "body water", "outer space", "Most plants", "Mars", "our planet", "trees", "mouth of rivers", "seasons" ]
our planet
Answer the following multiple-choice question. Question: plants live just about everywhere where? Options: A. body water B. outer space C. Most plants D. Mars E. our planet F. trees G. mouth of rivers H. seasons Which option is correct and why?
The correct answer is: our planet.
E
What can reproduce with help from moving water, wind, or other organisms?
[ "gasoline", "trees", "plants", "fungi", "animals", "water", "the Sun", "ferns" ]
fungi
Answer the following multiple-choice question. Question: What can reproduce with help from moving water, wind, or other organisms? Options: A. gasoline B. trees C. plants D. fungi E. animals F. water G. the Sun H. ferns Which option is correct and why?
The correct answer is: fungi.
D
Sailors guided themselves with the night sky using a
[ "the sun", "the moon", "never moving star", "light houses" ]
never moving star
Answer the following multiple-choice question. Question: Sailors guided themselves with the night sky using a Options: A. the sun B. the moon C. never moving star D. light houses Which option is correct and why?
The correct answer is: never moving star.
C
what and excessive crop irrigation enhance negative impacts on the environment
[ "contamination", "drought", "humans disturb it", "Pollution", "Greenhouse gasses", "Deforestation", "uncontrolled", "threatened" ]
Deforestation
Answer the following multiple-choice question. Question: what and excessive crop irrigation enhance negative impacts on the environment Options: A. contamination B. drought C. humans disturb it D. Pollution E. Greenhouse gasses F. Deforestation G. uncontrolled H. threatened Which option is correct and why?
The correct answer is: Deforestation.
A
Aquatic animals in water use webbed feet due to what?
[ "ability to sense light", "principals of aerodynamics", "kinetic energy", "swimming slower", "refraction of light", "poor swiming", "bending light rays", "dynamic relationships" ]
principals of aerodynamics
Answer the following multiple-choice question. Question: Aquatic animals in water use webbed feet due to what? Options: A. ability to sense light B. principals of aerodynamics C. kinetic energy D. swimming slower E. refraction of light F. poor swiming G. bending light rays H. dynamic relationships Which option is correct and why?
The correct answer is: principals of aerodynamics.
B
The reason that flies can always find food is that they can smell
[ "organism decay", "bad smells", "dying animals", "rotting trees" ]
organism decay
Answer the following multiple-choice question. Question: The reason that flies can always find food is that they can smell Options: A. organism decay B. bad smells C. dying animals D. rotting trees Which option is correct and why?
The correct answer is: organism decay.
A
What control many cell activities and are very important for the chemical equilibrium of the body?
[ "organs", "Energy", "critical organs", "sweating", "Organic compounds", "pancreas", "hydration", "the hormones" ]
the hormones
Answer the following multiple-choice question. Question: What control many cell activities and are very important for the chemical equilibrium of the body? Options: A. organs B. Energy C. critical organs D. sweating E. Organic compounds F. pancreas G. hydration H. the hormones Which option is correct and why?
The correct answer is: the hormones.
A
What do you call the substance in a cooling system that has a low boiling point and changes between liquid and gaseous states?
[ "emission", "refrigerant", "byproduct", "coolant" ]
refrigerant
Answer the following multiple-choice question. Question: What do you call the substance in a cooling system that has a low boiling point and changes between liquid and gaseous states? Options: A. emission B. refrigerant C. byproduct D. coolant Which option is correct and why?
The correct answer is: refrigerant.
B
What are the two best known baryons?
[ "protons and neutrons", "flux and neurons", "electrons and neutrons", "shafts and neutrons" ]
protons and neutrons
Answer the following multiple-choice question. Question: What are the two best known baryons? Options: A. protons and neutrons B. flux and neurons C. electrons and neutrons D. shafts and neutrons Which option is correct and why?
The correct answer is: protons and neutrons.
A
Doing this in national parks and many other wooded areas is illegal because it harms the environment
[ "existing", "talking", "wasting your time", "ditching your junk" ]
ditching your junk
Answer the following multiple-choice question. Question: Doing this in national parks and many other wooded areas is illegal because it harms the environment Options: A. existing B. talking C. wasting your time D. ditching your junk Which option is correct and why?
The correct answer is: ditching your junk.
D
Glycerol is a triol, an alcohol which contains three what?
[ "stark functional groups", "hydroxl acidic groups", "cytoplasm functional groups", "hydroxl functional groups" ]
hydroxl functional groups
Answer the following multiple-choice question. Question: Glycerol is a triol, an alcohol which contains three what? Options: A. stark functional groups B. hydroxl acidic groups C. cytoplasm functional groups D. hydroxl functional groups Which option is correct and why?
The correct answer is: hydroxl functional groups.
D
Plants need sunlight for what process?
[ "metamorphosis", "glycolysis", "photosynthesis", "cyclogenesis" ]
photosynthesis
Answer the following multiple-choice question. Question: Plants need sunlight for what process? Options: A. metamorphosis B. glycolysis C. photosynthesis D. cyclogenesis Which option is correct and why?
The correct answer is: photosynthesis.
C
Salamanders may be unable to survive in a hot, dry location lacking food and water, but if it has food and water in an ideal location
[ "it is extinguished", "it may flourish", "it is financed", "it may crash" ]
it may flourish
Answer the following multiple-choice question. Question: Salamanders may be unable to survive in a hot, dry location lacking food and water, but if it has food and water in an ideal location Options: A. it is extinguished B. it may flourish C. it is financed D. it may crash Which option is correct and why?
The correct answer is: it may flourish.
B
In plants, a high concentration of iaa inhibits what?
[ "cell elongation", "same elongation", "technology elongation", "Cell reproduction" ]
cell elongation
Answer the following multiple-choice question. Question: In plants, a high concentration of iaa inhibits what? Options: A. cell elongation B. same elongation C. technology elongation D. Cell reproduction Which option is correct and why?
The correct answer is: cell elongation.
A
The desire to understand how and why things happen is shared by all branches of what?
[ "population", "science", "society", "government" ]
science
Answer the following multiple-choice question. Question: The desire to understand how and why things happen is shared by all branches of what? Options: A. population B. science C. society D. government Which option is correct and why?
The correct answer is: science.
B
what contracts when fibers get shorter?
[ "strength", "strong", "h2o", "bushes", "density", "wheat", "firm hugs", "biceps" ]
biceps
Answer the following multiple-choice question. Question: what contracts when fibers get shorter? Options: A. strength B. strong C. h2o D. bushes E. density F. wheat G. firm hugs H. biceps Which option is correct and why?
The correct answer is: biceps.
A
What do you call the electrons in the outermost energy level of an atom?
[ "valence electrons", "Proper electrons", "Inner electrons", "shell electrons" ]
valence electrons
Answer the following multiple-choice question. Question: What do you call the electrons in the outermost energy level of an atom? Options: A. valence electrons B. Proper electrons C. Inner electrons D. shell electrons Which option is correct and why?
The correct answer is: valence electrons.
A
What weather phenomenon increases the rate of weathering in rock and soil?
[ "rainfall", "earthquake", "temperature", "landslide" ]
rainfall
Answer the following multiple-choice question. Question: What weather phenomenon increases the rate of weathering in rock and soil? Options: A. rainfall B. earthquake C. temperature D. landslide Which option is correct and why?
The correct answer is: rainfall.
A
Harming an animal species has a what on the size of a group of individuals of that species?
[ "Abnormal cell growth", "uncontrolled", "net growth", "positive effect", "massive damage", "negative impact", "non-negative impact", "major threat to health" ]
negative impact
Answer the following multiple-choice question. Question: Harming an animal species has a what on the size of a group of individuals of that species? Options: A. Abnormal cell growth B. uncontrolled C. net growth D. positive effect E. massive damage F. negative impact G. non-negative impact H. major threat to health Which option is correct and why?
The correct answer is: negative impact.
A
What is the most widely used form of renewable energy in the world?
[ "solar", "wind", "fossil fuel", "hydropower" ]
hydropower
Answer the following multiple-choice question. Question: What is the most widely used form of renewable energy in the world? Options: A. solar B. wind C. fossil fuel D. hydropower Which option is correct and why?
The correct answer is: hydropower.
D
What can be pushed together to form an earthquake?
[ "fibrils", "volcanos", "crust", "energy", "trees", "waves", "boulders on the earth", "rocks" ]
crust
Answer the following multiple-choice question. Question: What can be pushed together to form an earthquake? Options: A. fibrils B. volcanos C. crust D. energy E. trees F. waves G. boulders on the earth H. rocks Which option is correct and why?
The correct answer is: crust.
C
oncogenes promote the division of celles with damaged what?
[ "Chlorophyll", "biological diversity", "death and devastation", "Leptospirosis", "epidermis and dermis", "Plant growth is reduced", "Veins and arteries.", "deoxyribonucleic acid" ]
deoxyribonucleic acid
Answer the following multiple-choice question. Question: oncogenes promote the division of celles with damaged what? Options: A. Chlorophyll B. biological diversity C. death and devastation D. Leptospirosis E. epidermis and dermis F. Plant growth is reduced G. Veins and arteries. H. deoxyribonucleic acid Which option is correct and why?
The correct answer is: deoxyribonucleic acid.
A
Half of the neurons formed in the embryo are eliminated because of _____________
[ "disease", "competition", "contraction", "cell death" ]
competition
Answer the following multiple-choice question. Question: Half of the neurons formed in the embryo are eliminated because of _____________ Options: A. disease B. competition C. contraction D. cell death Which option is correct and why?
The correct answer is: competition.
B
What are formed by flowing rivers through erosion over long periods of time?
[ "Sediment", "soft soil", "forests", "deep gorges", "cloud cover", "patch reefs", "big oceans", "kalenchoes" ]
deep gorges
Answer the following multiple-choice question. Question: What are formed by flowing rivers through erosion over long periods of time? Options: A. Sediment B. soft soil C. forests D. deep gorges E. cloud cover F. patch reefs G. big oceans H. kalenchoes Which option is correct and why?
The correct answer is: deep gorges.
D
A light bulb converts electrical energy to light and what?
[ "kinetic energy", "chemical energy", "thermal energy", "visible energy" ]
thermal energy
Answer the following multiple-choice question. Question: A light bulb converts electrical energy to light and what? Options: A. kinetic energy B. chemical energy C. thermal energy D. visible energy Which option is correct and why?
The correct answer is: thermal energy.
C
What is it called when large objects are broken down into smaller pieces?
[ "decay", "metamorphosis", "weathering", "evolution" ]
weathering
Answer the following multiple-choice question. Question: What is it called when large objects are broken down into smaller pieces? Options: A. decay B. metamorphosis C. weathering D. evolution Which option is correct and why?
The correct answer is: weathering.
C
what can animals be startled by?
[ "murmur", "reflexes", "vehicles", "movement", "rain", "photons", "waves", "an object" ]
movement
Answer the following multiple-choice question. Question: what can animals be startled by? Options: A. murmur B. reflexes C. vehicles D. movement E. rain F. photons G. waves H. an object Which option is correct and why?
The correct answer is: movement.
D
Through what does urine enter the bladder?
[ "the enterocytes", "the vas deferens", "the tubules", "the ureters" ]
the ureters
Answer the following multiple-choice question. Question: Through what does urine enter the bladder? Options: A. the enterocytes B. the vas deferens C. the tubules D. the ureters Which option is correct and why?
The correct answer is: the ureters.
D
what causes soil loss from soil erosion?
[ "nutrients", "flooding", "rainfall", "moving air", "deforestation", "forces", "stagnant air", "lome" ]
moving air
Answer the following multiple-choice question. Question: what causes soil loss from soil erosion? Options: A. nutrients B. flooding C. rainfall D. moving air E. deforestation F. forces G. stagnant air H. lome Which option is correct and why?
The correct answer is: moving air.
D
What help assemble the proteins?
[ "Something coming from a gland", "A Greek letter", "microorganisms", "polymers of nucleotides", "eggs", "sperm", "white blood cells", "flow of electrons" ]
polymers of nucleotides
Answer the following multiple-choice question. Question: What help assemble the proteins? Options: A. Something coming from a gland B. A Greek letter C. microorganisms D. polymers of nucleotides E. eggs F. sperm G. white blood cells H. flow of electrons Which option is correct and why?
The correct answer is: polymers of nucleotides.
D
Fish move best through water when their fins are?
[ "Large [Collect]", "Long", "Small", "Short" ]
Large [Collect]
Answer the following multiple-choice question. Question: Fish move best through water when their fins are? Options: A. Large [Collect] B. Long C. Small D. Short Which option is correct and why?
The correct answer is: Large [Collect].
A
What can help prevent food from spoiling?
[ "Dehydration", "Plastics", "Metals.", "sweating", "Cellulose", "sugar", "Pesticides", "Papers" ]
Plastics
Answer the following multiple-choice question. Question: What can help prevent food from spoiling? Options: A. Dehydration B. Plastics C. Metals. D. sweating E. Cellulose F. sugar G. Pesticides H. Papers Which option is correct and why?
The correct answer is: Plastics.
B
Of the three basic types of emissions, which has the highest penetrating power?
[ "chemical radiation", "fluid radiation", "ultraviolet radiation", "gamma radiation" ]
gamma radiation
Answer the following multiple-choice question. Question: Of the three basic types of emissions, which has the highest penetrating power? Options: A. chemical radiation B. fluid radiation C. ultraviolet radiation D. gamma radiation Which option is correct and why?
The correct answer is: gamma radiation.
D
One component of rock formations in caves is
[ "liberal tears", "bat urine", "salty ocean water", "granite statues" ]
bat urine
Answer the following multiple-choice question. Question: One component of rock formations in caves is Options: A. liberal tears B. bat urine C. salty ocean water D. granite statues Which option is correct and why?
The correct answer is: bat urine.
B
What keeps warm?
[ "bushes", "muscles", "Limbs", "fibers", "keratin", "skin", "bears", "hair" ]
bears
Answer the following multiple-choice question. Question: What keeps warm? Options: A. bushes B. muscles C. Limbs D. fibers E. keratin F. skin G. bears H. hair Which option is correct and why?
The correct answer is: bears.
A
Which relationship is true?
[ "a soccer pitch slows the ball down via magic", "a soccer pitch slows the ball down because it is wet", "a soccer pitch slows the ball down because there is always wind", "a soccer pitch slows the ball down via friction" ]
a soccer pitch slows the ball down via friction
Answer the following multiple-choice question. Question: Which relationship is true? Options: A. a soccer pitch slows the ball down via magic B. a soccer pitch slows the ball down because it is wet C. a soccer pitch slows the ball down because there is always wind D. a soccer pitch slows the ball down via friction Which option is correct and why?
The correct answer is: a soccer pitch slows the ball down via friction.
D
The shelf of the continent is close to?
[ "whales", "island changes", "oceanic frontier edge", "boats" ]
oceanic frontier edge
Answer the following multiple-choice question. Question: The shelf of the continent is close to? Options: A. whales B. island changes C. oceanic frontier edge D. boats Which option is correct and why?
The correct answer is: oceanic frontier edge.
C
if the local forest is cut down, which one of these animal's habitat might be affected?
[ "a student living in a townhouse", "a man who lives in the city", "a dog who lives in a pound", "a rabbit who lives in a hole" ]
a rabbit who lives in a hole
Answer the following multiple-choice question. Question: if the local forest is cut down, which one of these animal's habitat might be affected? Options: A. a student living in a townhouse B. a man who lives in the city C. a dog who lives in a pound D. a rabbit who lives in a hole Which option is correct and why?
The correct answer is: a rabbit who lives in a hole.
D
Animals can not produce their own food making them _________.
[ "omnivores", "autotrophs", "photoreliant", "heterotrophs" ]
heterotrophs
Answer the following multiple-choice question. Question: Animals can not produce their own food making them _________. Options: A. omnivores B. autotrophs C. photoreliant D. heterotrophs Which option is correct and why?
The correct answer is: heterotrophs.
D
The lungs, kidneys, skin, and large intestine are all part of what organ system?
[ "sensory", "respiratory", "excretory", "digestive" ]
excretory
Answer the following multiple-choice question. Question: The lungs, kidneys, skin, and large intestine are all part of what organ system? Options: A. sensory B. respiratory C. excretory D. digestive Which option is correct and why?
The correct answer is: excretory.
C
Which gas moves from the blood in the capillaries into the air?
[ "nitrogen", "carbon dioxide", "carbon monoxide", "oxygen" ]
carbon dioxide
Answer the following multiple-choice question. Question: Which gas moves from the blood in the capillaries into the air? Options: A. nitrogen B. carbon dioxide C. carbon monoxide D. oxygen Which option is correct and why?
The correct answer is: carbon dioxide.
B
Does blood flow increase or decrease when blood vessels constrict?
[ "it stops", "it's not affected", "decrease", "increases" ]
decrease
Answer the following multiple-choice question. Question: Does blood flow increase or decrease when blood vessels constrict? Options: A. it stops B. it's not affected C. decrease D. increases Which option is correct and why?
The correct answer is: decrease.
C
When would water evaporate the most quickly?
[ "Winter", "sun", "Summer", "Spring", "Autumn", "Tropical", "excretion", "oceans" ]
Summer
Answer the following multiple-choice question. Question: When would water evaporate the most quickly? Options: A. Winter B. sun C. Summer D. Spring E. Autumn F. Tropical G. excretion H. oceans Which option is correct and why?
The correct answer is: Summer.
C
Taking it out into the sun can
[ "drain the power from a solar calculator", "power down a solar calculator", "short circuit a solar calculator", "allow a solar calculator to come on" ]
allow a solar calculator to come on
Answer the following multiple-choice question. Question: Taking it out into the sun can Options: A. drain the power from a solar calculator B. power down a solar calculator C. short circuit a solar calculator D. allow a solar calculator to come on Which option is correct and why?
The correct answer is: allow a solar calculator to come on.
D
Female monotremes lack a uterus and vagina. instead they have what?
[ "urethra", "placenta", "endometrium", "cloaca" ]
cloaca
Answer the following multiple-choice question. Question: Female monotremes lack a uterus and vagina. instead they have what? Options: A. urethra B. placenta C. endometrium D. cloaca Which option is correct and why?
The correct answer is: cloaca.
D
Every human cell has the same what, and each cell has thousands of them?
[ "DNA", "ribosomes", "chromosomes", "genes" ]
genes
Answer the following multiple-choice question. Question: Every human cell has the same what, and each cell has thousands of them? Options: A. DNA B. ribosomes C. chromosomes D. genes Which option is correct and why?
The correct answer is: genes.
D
What happens to the rate of chemical reactions in higher temperatures?
[ "they become erratic", "they stop", "they decrease", "they increase" ]
they increase
Answer the following multiple-choice question. Question: What happens to the rate of chemical reactions in higher temperatures? Options: A. they become erratic B. they stop C. they decrease D. they increase Which option is correct and why?
The correct answer is: they increase.
D
What is common in high cold latitudes that can force soil particles together?
[ "solid, liquid, gas", "earthquakes", "evaporative cooling", "fissures of hot, acidic water", "Evaporation of water", "subthermal movements", "flooding and erosion", "freezing and thawing water" ]
freezing and thawing water
Answer the following multiple-choice question. Question: What is common in high cold latitudes that can force soil particles together? Options: A. solid, liquid, gas B. earthquakes C. evaporative cooling D. fissures of hot, acidic water E. Evaporation of water F. subthermal movements G. flooding and erosion H. freezing and thawing water Which option is correct and why?
The correct answer is: freezing and thawing water.
A
Many deleterious alleles have such severe effects that a homozygous embryo spontaneously aborts long before what?
[ "LIfe", "birth", "couple", "baby" ]
birth
Answer the following multiple-choice question. Question: Many deleterious alleles have such severe effects that a homozygous embryo spontaneously aborts long before what? Options: A. LIfe B. birth C. couple D. baby Which option is correct and why?
The correct answer is: birth.
B
Centrioles are a very important part of what?
[ "enterocytes", "centrosomes", "centricles", "tubercles" ]
centrosomes
Answer the following multiple-choice question. Question: Centrioles are a very important part of what? Options: A. enterocytes B. centrosomes C. centricles D. tubercles Which option is correct and why?
The correct answer is: centrosomes.
B
What does water do when it's above 100 degrees?
[ "Boils", "moves", "drink", "state", "Creates fog", "Freezes", "rain", "Dissipates" ]
Boils
Answer the following multiple-choice question. Question: What does water do when it's above 100 degrees? Options: A. Boils B. moves C. drink D. state E. Creates fog F. Freezes G. rain H. Dissipates Which option is correct and why?
The correct answer is: Boils.
A
What gas do the lungs give up as they take in oxygen?
[ "carbon monoxide", "methane", "carbon dioxide", "nitrogen" ]
carbon dioxide
Answer the following multiple-choice question. Question: What gas do the lungs give up as they take in oxygen? Options: A. carbon monoxide B. methane C. carbon dioxide D. nitrogen Which option is correct and why?
The correct answer is: carbon dioxide.
C
What environment has low rainfall?
[ "tropics", "sandy zone", "sandbox", "forests" ]
sandy zone
Answer the following multiple-choice question. Question: What environment has low rainfall? Options: A. tropics B. sandy zone C. sandbox D. forests Which option is correct and why?
The correct answer is: sandy zone.
B
What emits light waves?
[ "an object", "a radio", "sensory neurons", "solid, liquid, gas", "a chair", "a flashlight", "harmful substances", "a rock" ]
a flashlight
Answer the following multiple-choice question. Question: What emits light waves? Options: A. an object B. a radio C. sensory neurons D. solid, liquid, gas E. a chair F. a flashlight G. harmful substances H. a rock Which option is correct and why?
The correct answer is: a flashlight.
A
What do you call a species that has died out in the past?
[ "inhabit", "endangered", "remnant", "extinct" ]
extinct
Answer the following multiple-choice question. Question: What do you call a species that has died out in the past? Options: A. inhabit B. endangered C. remnant D. extinct Which option is correct and why?
The correct answer is: extinct.
D
An action that may provide a small bit of warmth could be
[ "looking out of a window", "putting the radio on", "looking at a snow storm", "smashing hands together repeatedly" ]
smashing hands together repeatedly
Answer the following multiple-choice question. Question: An action that may provide a small bit of warmth could be Options: A. looking out of a window B. putting the radio on C. looking at a snow storm D. smashing hands together repeatedly Which option is correct and why?
The correct answer is: smashing hands together repeatedly.
D
What does a plant require for survival?
[ "offspring", "nutrients", "soul", "Light", "carbohydrates", "Glucose", "sunlight", "humans" ]
nutrients
Answer the following multiple-choice question. Question: What does a plant require for survival? Options: A. offspring B. nutrients C. soul D. Light E. carbohydrates F. Glucose G. sunlight H. humans Which option is correct and why?
The correct answer is: nutrients.
B
Most hormones are controlled by what type of feedback, which causes the hormone to decrease its own production?
[ "unusual", "negative", "positive", "neutral" ]
negative
Answer the following multiple-choice question. Question: Most hormones are controlled by what type of feedback, which causes the hormone to decrease its own production? Options: A. unusual B. negative C. positive D. neutral Which option is correct and why?
The correct answer is: negative.
B
What is the basic unit of computer memory?
[ "Megabyte", "byte", "Bit", "Teraybte" ]
byte
Answer the following multiple-choice question. Question: What is the basic unit of computer memory? Options: A. Megabyte B. byte C. Bit D. Teraybte Which option is correct and why?
The correct answer is: byte.
B
What kind of reproduction produces genetically identical organisms or clones?
[ "Prophase I", "Meiosis", "asexual", "Sexual" ]
asexual
Answer the following multiple-choice question. Question: What kind of reproduction produces genetically identical organisms or clones? Options: A. Prophase I B. Meiosis C. asexual D. Sexual Which option is correct and why?
The correct answer is: asexual.
C