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What can cause the pH of the soil to increase?
[ "incineration", "dry conditions", "Greenhouse gases", "clean water", "contamination", "air", "erosion", "clean rain" ]
incineration
Answer the following multiple-choice question. Question: What can cause the pH of the soil to increase? Options: A. incineration B. dry conditions C. Greenhouse gases D. clean water E. contamination F. air G. erosion H. clean rain Which option is correct and why?
The correct answer is: incineration.
A
The change of the Earth's distance from the sun causes the amount of what to decrease?
[ "air", "daylight", "energy", "water", "Weight", "temperature", "time", "sunlight" ]
daylight
Answer the following multiple-choice question. Question: The change of the Earth's distance from the sun causes the amount of what to decrease? Options: A. air B. daylight C. energy D. water E. Weight F. temperature G. time H. sunlight Which option is correct and why?
The correct answer is: daylight.
B
What are the three forms of water as found in nature?
[ "balanced , liquid , gas", "solid , mixture , gas", "ice, vapor, sleet", "solid, liquid, gas" ]
solid, liquid, gas
Answer the following multiple-choice question. Question: What are the three forms of water as found in nature? Options: A. balanced , liquid , gas B. solid , mixture , gas C. ice, vapor, sleet D. solid, liquid, gas Which option is correct and why?
The correct answer is: solid, liquid, gas.
D
where does gravity cause objects that have mass to be pulled down to?
[ "rocks", "Large.", "meters", "matter", "Mars", "oceans", "feet", "ground" ]
Mars
Answer the following multiple-choice question. Question: where does gravity cause objects that have mass to be pulled down to? Options: A. rocks B. Large. C. meters D. matter E. Mars F. oceans G. feet H. ground Which option is correct and why?
The correct answer is: Mars.
E
What has a negative impact on an ecosystem?
[ "planting trees", "cutting down oaks", "Destroy bridges", "planting oaks", "adding habitat", "deforestation", "massive damage", "Pesticides" ]
cutting down oaks
Answer the following multiple-choice question. Question: What has a negative impact on an ecosystem? Options: A. planting trees B. cutting down oaks C. Destroy bridges D. planting oaks E. adding habitat F. deforestation G. massive damage H. Pesticides Which option is correct and why?
The correct answer is: cutting down oaks.
B
What causes the refraction of light?
[ "focusing a lens", "Chemical energy", "fossil fuels", "all liquids", "a solute", "chemical changes", "an electron lens", "squids" ]
all liquids
Answer the following multiple-choice question. Question: What causes the refraction of light? Options: A. focusing a lens B. Chemical energy C. fossil fuels D. all liquids E. a solute F. chemical changes G. an electron lens H. squids Which option is correct and why?
The correct answer is: all liquids.
D
A perfectly inelastic collision reduces internal kinetic energy to the minimum it can have while still conserving what?
[ "heat", "energy", "elements", "momentum" ]
momentum
Answer the following multiple-choice question. Question: A perfectly inelastic collision reduces internal kinetic energy to the minimum it can have while still conserving what? Options: A. heat B. energy C. elements D. momentum Which option is correct and why?
The correct answer is: momentum.
D
Which of the following is a true statement?
[ "a lizard has warm blood", "a python has warm blood", "a robin has warm blood", "a rock has warm blood" ]
a robin has warm blood
Answer the following multiple-choice question. Question: Which of the following is a true statement? Options: A. a lizard has warm blood B. a python has warm blood C. a robin has warm blood D. a rock has warm blood Which option is correct and why?
The correct answer is: a robin has warm blood.
C
Which of these has resonating wood?
[ "a lute", "a bell", "a metal flute", "a saxophone" ]
a lute
Answer the following multiple-choice question. Question: Which of these has resonating wood? Options: A. a lute B. a bell C. a metal flute D. a saxophone Which option is correct and why?
The correct answer is: a lute.
A
Valence electrons also determine how well—if at all—the atoms of an element conduct what?
[ "light", "pollution", "water", "electricity" ]
electricity
Answer the following multiple-choice question. Question: Valence electrons also determine how well—if at all—the atoms of an element conduct what? Options: A. light B. pollution C. water D. electricity Which option is correct and why?
The correct answer is: electricity.
D
What can cause harm to the eyes?
[ "mildew", "normal water", "Herpes", "normal air", "coal", "mold", "acid", "contact solution" ]
acid
Answer the following multiple-choice question. Question: What can cause harm to the eyes? Options: A. mildew B. normal water C. Herpes D. normal air E. coal F. mold G. acid H. contact solution Which option is correct and why?
The correct answer is: acid.
A
Today, new elements are usually named after famous scientists. the names of the elements can be cumbersome to write in full, especially when combined to form the names of compounds. therefore, each element name is abbreviated as a one- or two-letter chemical this?
[ "notation", "symbol", "shorthand", "title" ]
symbol
Answer the following multiple-choice question. Question: Today, new elements are usually named after famous scientists. the names of the elements can be cumbersome to write in full, especially when combined to form the names of compounds. therefore, each element name is abbreviated as a one- or two-letter chemical this? Options: A. notation B. symbol C. shorthand D. title Which option is correct and why?
The correct answer is: symbol.
B
At what time of the year can tornadoes occur?
[ "winter", "spring", "any", "summer" ]
any
Answer the following multiple-choice question. Question: At what time of the year can tornadoes occur? Options: A. winter B. spring C. any D. summer Which option is correct and why?
The correct answer is: any.
C
The habitat of spoonbills is an extremely important what?
[ "Birds", "water", "star", "core", "store", "life", "satellite", "biome" ]
biome
Answer the following multiple-choice question. Question: The habitat of spoonbills is an extremely important what? Options: A. Birds B. water C. star D. core E. store F. life G. satellite H. biome Which option is correct and why?
The correct answer is: biome.
A
What is the most abundant element in the universe?
[ "hydrogen", "nitrogen", "carbon", "helium" ]
hydrogen
Answer the following multiple-choice question. Question: What is the most abundant element in the universe? Options: A. hydrogen B. nitrogen C. carbon D. helium Which option is correct and why?
The correct answer is: hydrogen.
A
What does a firecracker turn into sound?
[ "an object", "waves", "Scent", "photons", "Gunshots", "Energy", "Temperature", "Heat" ]
Energy
Answer the following multiple-choice question. Question: What does a firecracker turn into sound? Options: A. an object B. waves C. Scent D. photons E. Gunshots F. Energy G. Temperature H. Heat Which option is correct and why?
The correct answer is: Energy.
A
A thing that is near a running wood stove will discover when touching the stove
[ "that it is cool", "that it is safe", "that it is chilly", "that it will sear" ]
that it will sear
Answer the following multiple-choice question. Question: A thing that is near a running wood stove will discover when touching the stove Options: A. that it is cool B. that it is safe C. that it is chilly D. that it will sear Which option is correct and why?
The correct answer is: that it will sear.
D
When blood engorged capillaries leak fluid into neighboring tissues, what occurs?
[ "infection", "bleeding", "seeping", "swelling" ]
swelling
Answer the following multiple-choice question. Question: When blood engorged capillaries leak fluid into neighboring tissues, what occurs? Options: A. infection B. bleeding C. seeping D. swelling Which option is correct and why?
The correct answer is: swelling.
D
What's one thing beavers require to survive?
[ "kinetic energy", "Giardiasis", "the looseness of soil", "Great amounts of water.", "living things", "American black bears", "Aquatic animals", "sense organs" ]
Great amounts of water.
Answer the following multiple-choice question. Question: What's one thing beavers require to survive? Options: A. kinetic energy B. Giardiasis C. the looseness of soil D. Great amounts of water. E. living things F. American black bears G. Aquatic animals H. sense organs Which option is correct and why?
The correct answer is: Great amounts of water..
D
In what are proteins made?
[ "food", "water", "meat", "bacteria", "calcium", "nucleus", "animals", "Animal fur" ]
nucleus
Answer the following multiple-choice question. Question: In what are proteins made? Options: A. food B. water C. meat D. bacteria E. calcium F. nucleus G. animals H. Animal fur Which option is correct and why?
The correct answer is: nucleus.
A
Rocks are most likely to kill you while
[ "hiking a mountain", "in a pool", "at a concert", "in a cornfield" ]
hiking a mountain
Answer the following multiple-choice question. Question: Rocks are most likely to kill you while Options: A. hiking a mountain B. in a pool C. at a concert D. in a cornfield Which option is correct and why?
The correct answer is: hiking a mountain.
A
Acid rain can be a result of:
[ "burning", "citric acid", "flow of electrons", "fashion", "acid wash", "chemical changes", "burning coal", "Pollution" ]
burning coal
Answer the following multiple-choice question. Question: Acid rain can be a result of: Options: A. burning B. citric acid C. flow of electrons D. fashion E. acid wash F. chemical changes G. burning coal H. Pollution Which option is correct and why?
The correct answer is: burning coal.
A
What can be used for detecting texture?
[ "Chemical energy", "nose hairs", "pressure on the skin", "eyelashes", "the skin prick test", "an electron microscope", "satellites", "encoded information" ]
pressure on the skin
Answer the following multiple-choice question. Question: What can be used for detecting texture? Options: A. Chemical energy B. nose hairs C. pressure on the skin D. eyelashes E. the skin prick test F. an electron microscope G. satellites H. encoded information Which option is correct and why?
The correct answer is: pressure on the skin.
C
What fills the epidermal cells that make up fingernails and toenails?
[ "cellulose", "chromatin", "keratin", "amino acids" ]
keratin
Answer the following multiple-choice question. Question: What fills the epidermal cells that make up fingernails and toenails? Options: A. cellulose B. chromatin C. keratin D. amino acids Which option is correct and why?
The correct answer is: keratin.
C
What do you call the transfer of thermal energy?
[ "heat", "humidity", "formation", "precipitation" ]
heat
Answer the following multiple-choice question. Question: What do you call the transfer of thermal energy? Options: A. heat B. humidity C. formation D. precipitation Which option is correct and why?
The correct answer is: heat.
A
Most tissues regulated by the autonomic nervous system receive both sympathetic and parasympathetic input from?
[ "postganglionic neurons", "peristaltic neurons", "parasympathetic neurons", "Chemosensory center" ]
postganglionic neurons
Answer the following multiple-choice question. Question: Most tissues regulated by the autonomic nervous system receive both sympathetic and parasympathetic input from? Options: A. postganglionic neurons B. peristaltic neurons C. parasympathetic neurons D. Chemosensory center Which option is correct and why?
The correct answer is: postganglionic neurons.
A
what uses play to learn how to behave?
[ "athletes", "offspring", "humans", "dolphins", "density", "theater", "ants", "people" ]
dolphins
Answer the following multiple-choice question. Question: what uses play to learn how to behave? Options: A. athletes B. offspring C. humans D. dolphins E. density F. theater G. ants H. people Which option is correct and why?
The correct answer is: dolphins.
D
What is something uneven heating of the Earth's Surface can damage?
[ "The moon", "Roads", "Crops", "The sky", "homes", "biome", "soils", "Harvesting Machines" ]
Crops
Answer the following multiple-choice question. Question: What is something uneven heating of the Earth's Surface can damage? Options: A. The moon B. Roads C. Crops D. The sky E. homes F. biome G. soils H. Harvesting Machines Which option is correct and why?
The correct answer is: Crops.
C
The ileocecal valve, a sphincter, is usually in a constricted state, but when motility in the ileum increases, this sphincter relaxes, allowing food residue to enter the first portion of what?
[ "liver", "small intestine", "colon", "large intestine" ]
large intestine
Answer the following multiple-choice question. Question: The ileocecal valve, a sphincter, is usually in a constricted state, but when motility in the ileum increases, this sphincter relaxes, allowing food residue to enter the first portion of what? Options: A. liver B. small intestine C. colon D. large intestine Which option is correct and why?
The correct answer is: large intestine.
D
As a plant grows, what increases?
[ "photosynthesis", "soil", "minerals", "nutrients", "genetic diversity", "Quality of life", "gene flow", "gold" ]
photosynthesis
Answer the following multiple-choice question. Question: As a plant grows, what increases? Options: A. photosynthesis B. soil C. minerals D. nutrients E. genetic diversity F. Quality of life G. gene flow H. gold Which option is correct and why?
The correct answer is: photosynthesis.
A
Genes are used to make mrna by the process of transcription; mrna is used to synthesize proteins by the process of what?
[ "modification", "translation", "production", "moderation" ]
translation
Answer the following multiple-choice question. Question: Genes are used to make mrna by the process of transcription; mrna is used to synthesize proteins by the process of what? Options: A. modification B. translation C. production D. moderation Which option is correct and why?
The correct answer is: translation.
B
Quantum mechanics involves the study of material at what level?
[ "physical", "chemical", "atomic", "cellular" ]
atomic
Answer the following multiple-choice question. Question: Quantum mechanics involves the study of material at what level? Options: A. physical B. chemical C. atomic D. cellular Which option is correct and why?
The correct answer is: atomic.
C
Lakes are generally bigger and deeper than the birth home of what animal?
[ "salmon", "swea", "Lemurs", "mammals", "Frogs", "Sharks", "cows", "Birds" ]
Frogs
Answer the following multiple-choice question. Question: Lakes are generally bigger and deeper than the birth home of what animal? Options: A. salmon B. swea C. Lemurs D. mammals E. Frogs F. Sharks G. cows H. Birds Which option is correct and why?
The correct answer is: Frogs.
E
What are all alligators?
[ "solid, liquid, gas", "important habitats", "Under 32 degrees", "heterotrophs", "colder and wetter", "strong", "homogenous", "an organism's body" ]
heterotrophs
Answer the following multiple-choice question. Question: What are all alligators? Options: A. solid, liquid, gas B. important habitats C. Under 32 degrees D. heterotrophs E. colder and wetter F. strong G. homogenous H. an organism's body Which option is correct and why?
The correct answer is: heterotrophs.
D
What is an object that orbits a larger object called?
[ "asteroid", "satellite", "meteorite", "comet" ]
satellite
Answer the following multiple-choice question. Question: What is an object that orbits a larger object called? Options: A. asteroid B. satellite C. meteorite D. comet Which option is correct and why?
The correct answer is: satellite.
B
What type of forces are involved when deposited rock forms deltas or barrier islands?
[ "gravity forces", "constructive forces", "accumulation forces", "matter forces" ]
constructive forces
Answer the following multiple-choice question. Question: What type of forces are involved when deposited rock forms deltas or barrier islands? Options: A. gravity forces B. constructive forces C. accumulation forces D. matter forces Which option is correct and why?
The correct answer is: constructive forces.
B
What are scientists called who study the weather and give forecasts?
[ "geologists", "botanists", "meteorologists", "climatologists" ]
meteorologists
Answer the following multiple-choice question. Question: What are scientists called who study the weather and give forecasts? Options: A. geologists B. botanists C. meteorologists D. climatologists Which option is correct and why?
The correct answer is: meteorologists.
C
Wind blown sand contributes to what type of erosion?
[ "filtration", "vegetation", "abrasion", "sedimentary" ]
abrasion
Answer the following multiple-choice question. Question: Wind blown sand contributes to what type of erosion? Options: A. filtration B. vegetation C. abrasion D. sedimentary Which option is correct and why?
The correct answer is: abrasion.
C
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.
B
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.
E
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.
C
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.
D
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.
A
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.
E
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.
A
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.
A
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.
C
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.
A
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.
C
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.
D
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.
E
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.
B
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.
C
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.
C
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.
A
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.
A
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.
B
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.
A
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.
B
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.
C
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.
B
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.
C
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.
D
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.
C
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.
D
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.
B
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.
A
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
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.
C
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.
D
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.
B
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.
A
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.
D
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.
A
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.
D
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.
B
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.
B
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.
B
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.
A
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.
B
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.
C
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.
D
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.
D
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.
D
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.
C
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.
C
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.
C
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.
B
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.
B
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.
C
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.
D
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.
D
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.
A
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.
B
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.
A
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.
B
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.
D
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.
B
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.
C
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.
C