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What bone cell is responsible for forming new bone and is found in the growing portions of bone, including the periosteum and endosteum?
[ "fibroblasts", "osteoblast", "congenial", "epithelial" ]
osteoblast
Answer the following multiple-choice question. Question: What bone cell is responsible for forming new bone and is found in the growing portions of bone, including the periosteum and endosteum? Options: A. fibroblasts B. osteoblast C. congenial D. epithelial Which option is correct and why?
The correct answer is: osteoblast.
What may cause lions to fight other lions?
[ "influenza", "Pesticides", "cooperation", "heat energy", "competition", "tradition", "boredom", "hormones" ]
competition
Answer the following multiple-choice question. Question: What may cause lions to fight other lions? Options: A. influenza B. Pesticides C. cooperation D. heat energy E. competition F. tradition G. boredom H. hormones Which option is correct and why?
The correct answer is: competition.
What kind of cells have positive cell potentials, and all the reduction reactions are reversible?
[ "new cells", "inhibited cells", "galvanic cells", "neutral cells" ]
galvanic cells
Answer the following multiple-choice question. Question: What kind of cells have positive cell potentials, and all the reduction reactions are reversible? Options: A. new cells B. inhibited cells C. galvanic cells D. neutral cells Which option is correct and why?
The correct answer is: galvanic cells.
Something that helps prevent hypothermia:
[ "dehydration", "freezing", "water", "head hair", "cold", "electricity", "Exfoliation", "sweating" ]
head hair
Answer the following multiple-choice question. Question: Something that helps prevent hypothermia: Options: A. dehydration B. freezing C. water D. head hair E. cold F. electricity G. Exfoliation H. sweating Which option is correct and why?
The correct answer is: head hair.
What is the study of the similarities and differences in the embryos of different species?
[ "comparative embryology", "diversified embryology", "example embryology", "prenatal biology" ]
comparative embryology
Answer the following multiple-choice question. Question: What is the study of the similarities and differences in the embryos of different species? Options: A. comparative embryology B. diversified embryology C. example embryology D. prenatal biology Which option is correct and why?
The correct answer is: comparative embryology.
The runaway greenhouse effect present on Venus makes what unlikely?
[ "carbon in the atmosphere", "bloom time", "Animal survival", "robotic landers", "sustainable life", "Plant reproduction", "population movement", "sunlight at the surface" ]
sustainable life
Answer the following multiple-choice question. Question: The runaway greenhouse effect present on Venus makes what unlikely? Options: A. carbon in the atmosphere B. bloom time C. Animal survival D. robotic landers E. sustainable life F. Plant reproduction G. population movement H. sunlight at the surface Which option is correct and why?
The correct answer is: sustainable life.
What kind of behavior occurs only after experience or practice and describes most human behaviors?
[ "learned behavior", "innate behavior", "inherited behavior", "practiced behavior" ]
learned behavior
Answer the following multiple-choice question. Question: What kind of behavior occurs only after experience or practice and describes most human behaviors? Options: A. learned behavior B. innate behavior C. inherited behavior D. practiced behavior Which option is correct and why?
The correct answer is: learned behavior.
having what is a cause of mortality
[ "natural predators", "seasons", "Abnormal cell growth", "liver cancer", "insects", "chickenpox", "influenza", "sunlight" ]
natural predators
Answer the following multiple-choice question. Question: having what is a cause of mortality Options: A. natural predators B. seasons C. Abnormal cell growth D. liver cancer E. insects F. chickenpox G. influenza H. sunlight Which option is correct and why?
The correct answer is: natural predators.
You are hiking up the side of an inactive volcano, what are you most likely to find?
[ "Mercury", "Diamonds", "Minerals", "Gold" ]
Minerals
Answer the following multiple-choice question. Question: You are hiking up the side of an inactive volcano, what are you most likely to find? Options: A. Mercury B. Diamonds C. Minerals D. Gold Which option is correct and why?
The correct answer is: Minerals.
Something that converts heat energy to mechanical energy is categorized by what scale?
[ "engines", "dangerous", "supersonic", "Energy.", "electricity", "a hydraulic system", "kinetic energy", "Saffir-Simpson" ]
Saffir-Simpson
Answer the following multiple-choice question. Question: Something that converts heat energy to mechanical energy is categorized by what scale? Options: A. engines B. dangerous C. supersonic D. Energy. E. electricity F. a hydraulic system G. kinetic energy H. Saffir-Simpson Which option is correct and why?
The correct answer is: Saffir-Simpson.
Skittles left in snow become
[ "hot", "mushy", "hard", "soft" ]
hard
Answer the following multiple-choice question. Question: Skittles left in snow become Options: A. hot B. mushy C. hard D. soft Which option is correct and why?
The correct answer is: hard.
If a person looks at the night sky in February and then again in June, the stars will be
[ "unchanged", "gone", "unmoved", "differently placed" ]
differently placed
Answer the following multiple-choice question. Question: If a person looks at the night sky in February and then again in June, the stars will be Options: A. unchanged B. gone C. unmoved D. differently placed Which option is correct and why?
The correct answer is: differently placed.
Fur is a fiber that is found only on what kind of animal?
[ "animals", "reptiles", "bird", "humans", "mammals", "insects", "goats", "Animal fur" ]
mammals
Answer the following multiple-choice question. Question: Fur is a fiber that is found only on what kind of animal? Options: A. animals B. reptiles C. bird D. humans E. mammals F. insects G. goats H. Animal fur Which option is correct and why?
The correct answer is: mammals.
Which likely best models an earthquake?
[ "cutting paper", "crumpling foil", "folding paper", "eating foil" ]
crumpling foil
Answer the following multiple-choice question. Question: Which likely best models an earthquake? Options: A. cutting paper B. crumpling foil C. folding paper D. eating foil Which option is correct and why?
The correct answer is: crumpling foil.
How many types of bosons are there?
[ "three", "five", "four", "one" ]
four
Answer the following multiple-choice question. Question: How many types of bosons are there? Options: A. three B. five C. four D. one Which option is correct and why?
The correct answer is: four.
All atoms of the same element have the same number of what?
[ "charge", "electrons", "protons", "molecules" ]
protons
Answer the following multiple-choice question. Question: All atoms of the same element have the same number of what? Options: A. charge B. electrons C. protons D. molecules Which option is correct and why?
The correct answer is: protons.
What mirrors diverge light rays and, thus, have a negative focal length?
[ "convex", "concave", "curved", "diffraction" ]
convex
Answer the following multiple-choice question. Question: What mirrors diverge light rays and, thus, have a negative focal length? Options: A. convex B. concave C. curved D. diffraction Which option is correct and why?
The correct answer is: convex.
What can be used to see bacteria by making them appear bigger?
[ "an image", "telescope", "tiny polyps", "dogs", "photons", "Light", "magnifying glass", "microscope" ]
microscope
Answer the following multiple-choice question. Question: What can be used to see bacteria by making them appear bigger? Options: A. an image B. telescope C. tiny polyps D. dogs E. photons F. Light G. magnifying glass H. microscope Which option is correct and why?
The correct answer is: microscope.
What is a common condition caused by stomach acid?
[ "headache", "heartburn", "arthritis", "sunburn" ]
heartburn
Answer the following multiple-choice question. Question: What is a common condition caused by stomach acid? Options: A. headache B. heartburn C. arthritis D. sunburn Which option is correct and why?
The correct answer is: heartburn.
Wetlands are what major world habitats?
[ "uninhabitable", "swamp vegetation", "void", "food and shelter", "vegetation", "extremely important", "unimportant", "the environment" ]
extremely important
Answer the following multiple-choice question. Question: Wetlands are what major world habitats? Options: A. uninhabitable B. swamp vegetation C. void D. food and shelter E. vegetation F. extremely important G. unimportant H. the environment Which option is correct and why?
The correct answer is: extremely important.
What can cause tsunamis when moved?
[ "Physical weathering", "Tectonic plates", "tectonic distance", "tectonic notes", "an object", "dinner plates", "an external framework", "Water expanding" ]
Tectonic plates
Answer the following multiple-choice question. Question: What can cause tsunamis when moved? Options: A. Physical weathering B. Tectonic plates C. tectonic distance D. tectonic notes E. an object F. dinner plates G. an external framework H. Water expanding Which option is correct and why?
The correct answer is: Tectonic plates.
What type of roads and parking lots prevent rainwater from soaking into the ground?
[ "gravel", "shaded", "paved", "dirt" ]
paved
Answer the following multiple-choice question. Question: What type of roads and parking lots prevent rainwater from soaking into the ground? Options: A. gravel B. shaded C. paved D. dirt Which option is correct and why?
The correct answer is: paved.
What has two chains of nucleotides, one more than rna?
[ "fna", "dna", "mna", "gna" ]
dna
Answer the following multiple-choice question. Question: What has two chains of nucleotides, one more than rna? Options: A. fna B. dna C. mna D. gna Which option is correct and why?
The correct answer is: dna.
The second shell holds a maximum of how many electrons?
[ "9", "6", "8", "12" ]
8
Answer the following multiple-choice question. Question: The second shell holds a maximum of how many electrons? Options: A. 9 B. 6 C. 8 D. 12 Which option is correct and why?
The correct answer is: 8.
If a rock is sedimentary then
[ "sediment was fused with lava", "sediment was packed into tummies", "sediment was watered with salt", "sediment was packed tightly" ]
sediment was packed tightly
Answer the following multiple-choice question. Question: If a rock is sedimentary then Options: A. sediment was fused with lava B. sediment was packed into tummies C. sediment was watered with salt D. sediment was packed tightly Which option is correct and why?
The correct answer is: sediment was packed tightly.
What is the outer layer of an axon that acts like a layer of insulation, similar to the plastic that encases an electrical cord?
[ "nerve sheath", "lipids sheath", "myelin sheath", "layer sheath" ]
myelin sheath
Answer the following multiple-choice question. Question: What is the outer layer of an axon that acts like a layer of insulation, similar to the plastic that encases an electrical cord? Options: A. nerve sheath B. lipids sheath C. myelin sheath D. layer sheath Which option is correct and why?
The correct answer is: myelin sheath.
What is the measure of the change in velocity of a moving object called?
[ "force", "inclination", "stimulation", "acceleration" ]
acceleration
Answer the following multiple-choice question. Question: What is the measure of the change in velocity of a moving object called? Options: A. force B. inclination C. stimulation D. acceleration Which option is correct and why?
The correct answer is: acceleration.
You can bake cookies with the sun using
[ "melting ice", "aluminium foil", "blocks of ice", "soft cheese" ]
aluminium foil
Answer the following multiple-choice question. Question: You can bake cookies with the sun using Options: A. melting ice B. aluminium foil C. blocks of ice D. soft cheese Which option is correct and why?
The correct answer is: aluminium foil.
What is group 16 of the periodic table referred to?
[ "oxygen group", "dioxide group", "sulfur group", "acid group" ]
oxygen group
Answer the following multiple-choice question. Question: What is group 16 of the periodic table referred to? Options: A. oxygen group B. dioxide group C. sulfur group D. acid group Which option is correct and why?
The correct answer is: oxygen group.
What measures the amount of space a substance takes up?
[ "hydrogen and oxygen", "objects that have mass", "Veins and arteries.", "sweating", "evaporation", "A measuring cup", "heat energy", "an electron microscope" ]
A measuring cup
Answer the following multiple-choice question. Question: What measures the amount of space a substance takes up? Options: A. hydrogen and oxygen B. objects that have mass C. Veins and arteries. D. sweating E. evaporation F. A measuring cup G. heat energy H. an electron microscope Which option is correct and why?
The correct answer is: A measuring cup.
A hurricane is growing on the east coast, and it's coming off of the ocean, as they do. By the time the hurricane hits the east coast, it will have built up quite a bit, and this is because of
[ "the salt from the ocean", "the ocean being quite wet", "seas have humidity from raised temperatures and fluid", "the sea being cool and calm" ]
seas have humidity from raised temperatures and fluid
Answer the following multiple-choice question. Question: A hurricane is growing on the east coast, and it's coming off of the ocean, as they do. By the time the hurricane hits the east coast, it will have built up quite a bit, and this is because of Options: A. the salt from the ocean B. the ocean being quite wet C. seas have humidity from raised temperatures and fluid D. the sea being cool and calm Which option is correct and why?
The correct answer is: seas have humidity from raised temperatures and fluid.
Size is a general feature of cell structure that relates to?
[ "timing", "instance", "activation", "function" ]
function
Answer the following multiple-choice question. Question: Size is a general feature of cell structure that relates to? Options: A. timing B. instance C. activation D. function Which option is correct and why?
The correct answer is: function.
Oils are liquid lipids that plants use to store what?
[ "fat", "energy", "carbo", "Protein" ]
energy
Answer the following multiple-choice question. Question: Oils are liquid lipids that plants use to store what? Options: A. fat B. energy C. carbo D. Protein Which option is correct and why?
The correct answer is: energy.
Androgen secretion and sperm production are both controlled by hypothalamic and which other hormones?
[ "pituitary", "salivary", "Testes", "adrenal" ]
pituitary
Answer the following multiple-choice question. Question: Androgen secretion and sperm production are both controlled by hypothalamic and which other hormones? Options: A. pituitary B. salivary C. Testes D. adrenal Which option is correct and why?
The correct answer is: pituitary.
What occurs when plants release water vapor through stomata (leaf pores)?
[ "evaporation", "crystallization", "inhalation", "transpiration" ]
transpiration
Answer the following multiple-choice question. Question: What occurs when plants release water vapor through stomata (leaf pores)? Options: A. evaporation B. crystallization C. inhalation D. transpiration Which option is correct and why?
The correct answer is: transpiration.
Is sweat an exocrine or endocrine substance?
[ "exocrine", "both", "neither", "exocrine" ]
exocrine
Answer the following multiple-choice question. Question: Is sweat an exocrine or endocrine substance? Options: A. exocrine B. both C. neither D. exocrine Which option is correct and why?
The correct answer is: exocrine.
Synovial and ball-and-socket are both types of what?
[ "bonds", "cells", "muscles", "joints" ]
joints
Answer the following multiple-choice question. Question: Synovial and ball-and-socket are both types of what? Options: A. bonds B. cells C. muscles D. joints Which option is correct and why?
The correct answer is: joints.
Which two objects would electricity best flow through?
[ "a tin can and a plastic fork", "a steel beam and a soda can", "an eraser and a wooden pencil", "human skin and rubber gloves" ]
a steel beam and a soda can
Answer the following multiple-choice question. Question: Which two objects would electricity best flow through? Options: A. a tin can and a plastic fork B. a steel beam and a soda can C. an eraser and a wooden pencil D. human skin and rubber gloves Which option is correct and why?
The correct answer is: a steel beam and a soda can.
What can kill?
[ "life", "Inheriting genes", "security", "smoking tobacco", "electromagnetic energy", "safety", "heat or cold", "Destroy bridges" ]
Inheriting genes
Answer the following multiple-choice question. Question: What can kill? Options: A. life B. Inheriting genes C. security D. smoking tobacco E. electromagnetic energy F. safety G. heat or cold H. Destroy bridges Which option is correct and why?
The correct answer is: Inheriting genes.
What structure is found at the top of the head of the sperm that helps it penetrate and fertilize the egg?
[ "axial filament", "acrosome", "centriole", "terminal disc" ]
acrosome
Answer the following multiple-choice question. Question: What structure is found at the top of the head of the sperm that helps it penetrate and fertilize the egg? Options: A. axial filament B. acrosome C. centriole D. terminal disc Which option is correct and why?
The correct answer is: acrosome.
When electrons move from one atom to another, they become what?
[ "ions", "atoms", "neons", "particles" ]
ions
Answer the following multiple-choice question. Question: When electrons move from one atom to another, they become what? Options: A. ions B. atoms C. neons D. particles Which option is correct and why?
The correct answer is: ions.
What happens when an animal comes in contact with an electric fence?
[ "Plant growth is reduced", "it allows electricity to flow", "DNA damage and mutations", "depress neuronal excitability", "death and devastation", "exposure to cold", "body temperature reduces", "heat is produced" ]
it allows electricity to flow
Answer the following multiple-choice question. Question: What happens when an animal comes in contact with an electric fence? Options: A. Plant growth is reduced B. it allows electricity to flow C. DNA damage and mutations D. depress neuronal excitability E. death and devastation F. exposure to cold G. body temperature reduces H. heat is produced Which option is correct and why?
The correct answer is: it allows electricity to flow.
Most fungi reproduce asexually by producing what?
[ "ions", "toxins", "spores", "seeds" ]
spores
Answer the following multiple-choice question. Question: Most fungi reproduce asexually by producing what? Options: A. ions B. toxins C. spores D. seeds Which option is correct and why?
The correct answer is: spores.
What are formed when primary pollutants interact with sunlight, air, or each other?
[ "cross pollutants", "typical pollutants", "secondary contaminants", "secondary pollutants" ]
secondary pollutants
Answer the following multiple-choice question. Question: What are formed when primary pollutants interact with sunlight, air, or each other? Options: A. cross pollutants B. typical pollutants C. secondary contaminants D. secondary pollutants Which option is correct and why?
The correct answer is: secondary pollutants.
Ice made from which kind of water would melt when the others stay frozen?
[ "river water", "swamp water", "lake water", "coastal water" ]
coastal water
Answer the following multiple-choice question. Question: Ice made from which kind of water would melt when the others stay frozen? Options: A. river water B. swamp water C. lake water D. coastal water Which option is correct and why?
The correct answer is: coastal water.
As per the kinetic-molecular theory, in what direction do the molecules and ions of liquids move?
[ "same direction", "opposite direction", "alter directions", "random directions" ]
random directions
Answer the following multiple-choice question. Question: As per the kinetic-molecular theory, in what direction do the molecules and ions of liquids move? Options: A. same direction B. opposite direction C. alter directions D. random directions Which option is correct and why?
The correct answer is: random directions.
What do cranberries need for production?
[ "disease", "seeds", "bees", "food", "blueberries", "leaves", "energy", "wind pollination" ]
bees
Answer the following multiple-choice question. Question: What do cranberries need for production? Options: A. disease B. seeds C. bees D. food E. blueberries F. leaves G. energy H. wind pollination Which option is correct and why?
The correct answer is: bees.
A planet rotating causes cycles of day and night on that planet, like on
[ "Orion", "the Moon", "Jupiter", "Pluto" ]
Jupiter
Answer the following multiple-choice question. Question: A planet rotating causes cycles of day and night on that planet, like on Options: A. Orion B. the Moon C. Jupiter D. Pluto Which option is correct and why?
The correct answer is: Jupiter.
What is the name for medical doctors that specialize in the diagnosis and treatment of diseases of the heart?
[ "physicists", "Doctors", "cardiologists", "surgeons" ]
cardiologists
Answer the following multiple-choice question. Question: What is the name for medical doctors that specialize in the diagnosis and treatment of diseases of the heart? Options: A. physicists B. Doctors C. cardiologists D. surgeons Which option is correct and why?
The correct answer is: cardiologists.
If no conclusion is reached after an experiment, the scientist may retest what?
[ "materials", "hypothesis", "suggestions", "conclusion" ]
hypothesis
Answer the following multiple-choice question. Question: If no conclusion is reached after an experiment, the scientist may retest what? Options: A. materials B. hypothesis C. suggestions D. conclusion Which option is correct and why?
The correct answer is: hypothesis.
mushrooms are nonphotosynthetic and cannot what?
[ "reproduce", "make food to grow", "be seasoned", "Chemical energy", "Change colors", "refract or absorb.", "be eaten", "be absorbed" ]
make food to grow
Answer the following multiple-choice question. Question: mushrooms are nonphotosynthetic and cannot what? Options: A. reproduce B. make food to grow C. be seasoned D. Chemical energy E. Change colors F. refract or absorb. G. be eaten H. be absorbed Which option is correct and why?
The correct answer is: make food to grow.
What property of fluids causes something to stay on or near the surface of water?
[ "weight", "strength", "buoyancy", "density" ]
buoyancy
Answer the following multiple-choice question. Question: What property of fluids causes something to stay on or near the surface of water? Options: A. weight B. strength C. buoyancy D. density Which option is correct and why?
The correct answer is: buoyancy.
You can etch the surface of a windshield with
[ "a sponge", "feathers", "soft cloth", "jasper" ]
jasper
Answer the following multiple-choice question. Question: You can etch the surface of a windshield with Options: A. a sponge B. feathers C. soft cloth D. jasper Which option is correct and why?
The correct answer is: jasper.
The production of lightbulbs effects the
[ "brain", "blood cells", "air", "ocean" ]
ocean
Answer the following multiple-choice question. Question: The production of lightbulbs effects the Options: A. brain B. blood cells C. air D. ocean Which option is correct and why?
The correct answer is: ocean.
What is an example of a biochemical lipid that contributes to weight gain?
[ "fats", "proteins", "sugars", "acids" ]
fats
Answer the following multiple-choice question. Question: What is an example of a biochemical lipid that contributes to weight gain? Options: A. fats B. proteins C. sugars D. acids Which option is correct and why?
The correct answer is: fats.
Most modern seed plants are angiosperms that produce seeds in the what of flowers?
[ "lungs", "ovaries", "kidneys", "stems" ]
ovaries
Answer the following multiple-choice question. Question: Most modern seed plants are angiosperms that produce seeds in the what of flowers? Options: A. lungs B. ovaries C. kidneys D. stems Which option is correct and why?
The correct answer is: ovaries.
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What term is used to describe a solute that is water fearing?
[ "hydrophobic", "claustrophobic", "anti-hydral", "hydrogenic" ]
hydrophobic
Answer the following multiple-choice question. Question: What term is used to describe a solute that is water fearing? Options: A. hydrophobic B. claustrophobic C. anti-hydral D. hydrogenic Which option is correct and why?
The correct answer is: hydrophobic.
What cannot make their own food?
[ "parasites", "animals", "producers", "fungi", "bacteria", "phytoplankton", "plants", "humans" ]
animals
Answer the following multiple-choice question. Question: What cannot make their own food? Options: A. parasites B. animals C. producers D. fungi E. bacteria F. phytoplankton G. plants H. humans Which option is correct and why?
The correct answer is: animals.
What would a fly find most compelling?
[ "a science fiction movie starring the actor Jeff Goldblum", "a toilet seat scrubbed with baking soda and vinegar", "a saline solution for contact lenses", "a steak forgotten on a counter for an entire day" ]
a steak forgotten on a counter for an entire day
Answer the following multiple-choice question. Question: What would a fly find most compelling? Options: A. a science fiction movie starring the actor Jeff Goldblum B. a toilet seat scrubbed with baking soda and vinegar C. a saline solution for contact lenses D. a steak forgotten on a counter for an entire day Which option is correct and why?
The correct answer is: a steak forgotten on a counter for an entire day.
Calculations are described showing conversions between molar mass and what for gases?
[ "length", "density", "volume", "weight" ]
density
Answer the following multiple-choice question. Question: Calculations are described showing conversions between molar mass and what for gases? Options: A. length B. density C. volume D. weight Which option is correct and why?
The correct answer is: density.
What is the addition of nucleotides to the mrna strand?
[ "elevation", "insertion", "elongation", "axons" ]
elongation
Answer the following multiple-choice question. Question: What is the addition of nucleotides to the mrna strand? Options: A. elevation B. insertion C. elongation D. axons Which option is correct and why?
The correct answer is: elongation.
What makes the realized niche of chthamalus much smaller than its fundamental niche?
[ "microscopic competition", "asexual competition", "interspecific competition", "instantaneous competition" ]
interspecific competition
Answer the following multiple-choice question. Question: What makes the realized niche of chthamalus much smaller than its fundamental niche? Options: A. microscopic competition B. asexual competition C. interspecific competition D. instantaneous competition Which option is correct and why?
The correct answer is: interspecific competition.
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.
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.
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.
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.
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.
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.
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 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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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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.
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.
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.
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.
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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.
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.
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.
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.
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.
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.
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.
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.