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What do you call vesicle transport into the cell?
[ "dialysis", "metastasis", "passive transport", "endocytosis" ]
endocytosis
Answer the following multiple-choice question. Question: What do you call vesicle transport into the cell? Options: A. dialysis B. metastasis C. passive transport D. endocytosis Which option is correct and why?
The correct answer is: endocytosis.
What are daily changes in the level of ocean water called?
[ "waves", "currents", "tides", "floods" ]
tides
Answer the following multiple-choice question. Question: What are daily changes in the level of ocean water called? Options: A. waves B. currents C. tides D. floods Which option is correct and why?
The correct answer is: tides.
What is the name of the narrow tube that begins at the stomach and ends at the large intestine?
[ "small stomach", "small tissues", "pancreas", "small intestine" ]
small intestine
Answer the following multiple-choice question. Question: What is the name of the narrow tube that begins at the stomach and ends at the large intestine? Options: A. small stomach B. small tissues C. pancreas D. small intestine Which option is correct and why?
The correct answer is: small intestine.
What is the term for how close a measurement is to the true value?
[ "validity", "frequency", "accuracy", "correctness" ]
accuracy
Answer the following multiple-choice question. Question: What is the term for how close a measurement is to the true value? Options: A. validity B. frequency C. accuracy D. correctness Which option is correct and why?
The correct answer is: accuracy.
What are the two most abundant elements in the universe?
[ "hydrogen and oxygen", "oxygen and carbon", "nitrogen and carbon", "hydrogen and helium" ]
hydrogen and helium
Answer the following multiple-choice question. Question: What are the two most abundant elements in the universe? Options: A. hydrogen and oxygen B. oxygen and carbon C. nitrogen and carbon D. hydrogen and helium Which option is correct and why?
The correct answer is: hydrogen and helium.
What is the term for a close relationship between two species in which at least one species benefits.
[ "endosymbiosis", "candiasis", "symbiosis", "extosis" ]
symbiosis
Answer the following multiple-choice question. Question: What is the term for a close relationship between two species in which at least one species benefits. Options: A. endosymbiosis B. candiasis C. symbiosis D. extosis Which option is correct and why?
The correct answer is: symbiosis.
Atomic emission spectra are produced when excited electrons return to what state?
[ "orbital state", "ground state", "work state", "side state" ]
ground state
Answer the following multiple-choice question. Question: Atomic emission spectra are produced when excited electrons return to what state? Options: A. orbital state B. ground state C. work state D. side state Which option is correct and why?
The correct answer is: ground state.
The lungs perform gas exchange using air and what fluid, which is coming and going from the heart?
[ "water", "mucus", "blood", "saliva" ]
blood
Answer the following multiple-choice question. Question: The lungs perform gas exchange using air and what fluid, which is coming and going from the heart? Options: A. water B. mucus C. blood D. saliva Which option is correct and why?
The correct answer is: blood.
In addition to glucose, what gas is used during cellular respiration?
[ "oxygen", "hydrogen", "nitrogen", "methane" ]
oxygen
Answer the following multiple-choice question. Question: In addition to glucose, what gas is used during cellular respiration? Options: A. oxygen B. hydrogen C. nitrogen D. methane Which option is correct and why?
The correct answer is: oxygen.
Which germ layers are essential for animal embryos to grow and develop into a body?
[ "keratinocytes , ectoderm , mesoderm", "endoderm, ectoderm, mesoderm", "histone and melatonin", "cytoplasm and chloroplasm" ]
endoderm, ectoderm, mesoderm
Answer the following multiple-choice question. Question: Which germ layers are essential for animal embryos to grow and develop into a body? Options: A. keratinocytes , ectoderm , mesoderm B. endoderm, ectoderm, mesoderm C. histone and melatonin D. cytoplasm and chloroplasm Which option is correct and why?
The correct answer is: endoderm, ectoderm, mesoderm.
Scrubbers and catalytic converters are examples of technologies that change what into harmless compounds?
[ "contaminants", "toxins", "mutations", "pollutants" ]
pollutants
Answer the following multiple-choice question. Question: Scrubbers and catalytic converters are examples of technologies that change what into harmless compounds? Options: A. contaminants B. toxins C. mutations D. pollutants Which option is correct and why?
The correct answer is: pollutants.
What is the weighted average of the masses of all isotopes of an element called?
[ "cell mass", "weight mass", "light mass", "atomic mass" ]
atomic mass
Answer the following multiple-choice question. Question: What is the weighted average of the masses of all isotopes of an element called? Options: A. cell mass B. weight mass C. light mass D. atomic mass Which option is correct and why?
The correct answer is: atomic mass.
The ability of a water spider to walk across a body of water is an example of what?
[ "high density", "low gravity", "magnetism", "surface tension" ]
surface tension
Answer the following multiple-choice question. Question: The ability of a water spider to walk across a body of water is an example of what? Options: A. high density B. low gravity C. magnetism D. surface tension Which option is correct and why?
The correct answer is: surface tension.
What are compounds with the same molecular formula but different structures and properties called?
[ "polymers", "substrates", "isomers", "monomers" ]
isomers
Answer the following multiple-choice question. Question: What are compounds with the same molecular formula but different structures and properties called? Options: A. polymers B. substrates C. isomers D. monomers Which option is correct and why?
The correct answer is: isomers.
What happens when the blood cannot reach the heart because a blood vessel is blocked?
[ "pass out", "heart burn", "heart attack", "fast heart beat" ]
heart attack
Answer the following multiple-choice question. Question: What happens when the blood cannot reach the heart because a blood vessel is blocked? Options: A. pass out B. heart burn C. heart attack D. fast heart beat Which option is correct and why?
The correct answer is: heart attack.
What kind of solid is characterized by an unorganized and unpredictable structure?
[ "magnetic", "porous", "aqueous", "amorphous" ]
amorphous
Answer the following multiple-choice question. Question: What kind of solid is characterized by an unorganized and unpredictable structure? Options: A. magnetic B. porous C. aqueous D. amorphous Which option is correct and why?
The correct answer is: amorphous.
An object with more mass has greater thermal energy than an object with less mass because it has more what?
[ "gravity", "ions", "molecules", "atoms" ]
atoms
Answer the following multiple-choice question. Question: An object with more mass has greater thermal energy than an object with less mass because it has more what? Options: A. gravity B. ions C. molecules D. atoms Which option is correct and why?
The correct answer is: atoms.
Ether molecules have an oxygen atom and can engage in hydrogen bonding with which other molecules?
[ "lipids", "proteins", "water", "carbon dioxides" ]
water
Answer the following multiple-choice question. Question: Ether molecules have an oxygen atom and can engage in hydrogen bonding with which other molecules? Options: A. lipids B. proteins C. water D. carbon dioxides Which option is correct and why?
The correct answer is: water.
What basic structures of the nervous system innervate the muscles of the respiratory system and are responsible for controlling and regulating pulmonary ventilation?
[ "enzymes", "toxins", "neurons", "ions" ]
neurons
Answer the following multiple-choice question. Question: What basic structures of the nervous system innervate the muscles of the respiratory system and are responsible for controlling and regulating pulmonary ventilation? Options: A. enzymes B. toxins C. neurons D. ions Which option is correct and why?
The correct answer is: neurons.
Pollutants in surface water can filter into the ground and enter a what?
[ "turbine", "combustion aquifer", "hydro plant", "groundwater aquifer" ]
groundwater aquifer
Answer the following multiple-choice question. Question: Pollutants in surface water can filter into the ground and enter a what? Options: A. turbine B. combustion aquifer C. hydro plant D. groundwater aquifer Which option is correct and why?
The correct answer is: groundwater aquifer.
What is the most common cause of dwarfism?
[ "deformity", "hypothyroidism", "retinopathy", "achondroplasia" ]
achondroplasia
Answer the following multiple-choice question. Question: What is the most common cause of dwarfism? Options: A. deformity B. hypothyroidism C. retinopathy D. achondroplasia Which option is correct and why?
The correct answer is: achondroplasia.
What describes how much matter is in a certain amount of space?
[ "mass", "volume", "viscosity", "density" ]
density
Answer the following multiple-choice question. Question: What describes how much matter is in a certain amount of space? Options: A. mass B. volume C. viscosity D. density Which option is correct and why?
The correct answer is: density.
Axons pass what on to other cells?
[ "synthesis impulses", "calcium impulses", "myelin impulses", "nerve impulses" ]
nerve impulses
Answer the following multiple-choice question. Question: Axons pass what on to other cells? Options: A. synthesis impulses B. calcium impulses C. myelin impulses D. nerve impulses Which option is correct and why?
The correct answer is: nerve impulses.
Sister chromatids separate and move to opposite poles of the cell in the third phase of what process?
[ "cytokinesis", "meiosis", "epistasis", "mitosis" ]
mitosis
Answer the following multiple-choice question. Question: Sister chromatids separate and move to opposite poles of the cell in the third phase of what process? Options: A. cytokinesis B. meiosis C. epistasis D. mitosis Which option is correct and why?
The correct answer is: mitosis.
What is the distance that sound waves travel in a given amount of time called?
[ "force of sound", "momentum of sound", "speed of sound", "velocity of sound" ]
speed of sound
Answer the following multiple-choice question. Question: What is the distance that sound waves travel in a given amount of time called? Options: A. force of sound B. momentum of sound C. speed of sound D. velocity of sound Which option is correct and why?
The correct answer is: speed of sound.
What would you call a relationship where the bacteria benefit and and the other organism is harmed?
[ "fungi", "pathology", "symbiotic", "parasitism" ]
parasitism
Answer the following multiple-choice question. Question: What would you call a relationship where the bacteria benefit and and the other organism is harmed? Options: A. fungi B. pathology C. symbiotic D. parasitism Which option is correct and why?
The correct answer is: parasitism.
What is the supply of water to land or crops to help growth called?
[ "drainage", "absorbtion", "irrigation", "precipitation" ]
irrigation
Answer the following multiple-choice question. Question: What is the supply of water to land or crops to help growth called? Options: A. drainage B. absorbtion C. irrigation D. precipitation Which option is correct and why?
The correct answer is: irrigation.
What form of matter has neither a definite shape nor a definite volume?
[ "solid", "gas", "liquid", "plasma" ]
gas
Answer the following multiple-choice question. Question: What form of matter has neither a definite shape nor a definite volume? Options: A. solid B. gas C. liquid D. plasma Which option is correct and why?
The correct answer is: gas.
Which stage has already been completed by the time sea urchin eggs are released from the female?
[ "meiosis", "fetus", "secondary", "mitoses" ]
meiosis
Answer the following multiple-choice question. Question: Which stage has already been completed by the time sea urchin eggs are released from the female? Options: A. meiosis B. fetus C. secondary D. mitoses Which option is correct and why?
The correct answer is: meiosis.
Unlike pure substances, mixtures have a what?
[ "complex composition", "variable composition", "efficient composition", "unique composition" ]
variable composition
Answer the following multiple-choice question. Question: Unlike pure substances, mixtures have a what? Options: A. complex composition B. variable composition C. efficient composition D. unique composition Which option is correct and why?
The correct answer is: variable composition.
What process does not cause a rock to melt completely, instead causing the minerals to change by heat or pressure?
[ "metamorphism", "igneous extrusion", "sedimentation", "oxidation" ]
metamorphism
Answer the following multiple-choice question. Question: What process does not cause a rock to melt completely, instead causing the minerals to change by heat or pressure? Options: A. metamorphism B. igneous extrusion C. sedimentation D. oxidation Which option is correct and why?
The correct answer is: metamorphism.
A disaccharide is a pair of monosaccharides. disaccharides are formed via dehydration synthesis, and the bond linking them is referred to as a glycosidic bond (glyco- = “sugar”). three disaccharides (shown in figure 2.19) are important to humans. these are sucrose, commonly referred to as table sugar; lactose, or milk ...
[ "malt sugar", "sucralose", "fruit sugar", "saccharin" ]
malt sugar
Answer the following multiple-choice question. Question: A disaccharide is a pair of monosaccharides. disaccharides are formed via dehydration synthesis, and the bond linking them is referred to as a glycosidic bond (glyco- = “sugar”). three disaccharides (shown in figure 2.19) are important to humans. these are sucro...
The correct answer is: malt sugar.
At what age is skeletal maturity reached by humans?
[ "20", "30", "40", "15" ]
20
Answer the following multiple-choice question. Question: At what age is skeletal maturity reached by humans? Options: A. 20 B. 30 C. 40 D. 15 Which option is correct and why?
The correct answer is: 20.
What is most of earth's surface covered with?
[ "sand", "water", "insects", "silicon" ]
water
Answer the following multiple-choice question. Question: What is most of earth's surface covered with? Options: A. sand B. water C. insects D. silicon Which option is correct and why?
The correct answer is: water.
What is the sac-like organ of the body that is important for both mechanical and chemical digestion?
[ "stomach", "gall bladder", "kidney", "spleen" ]
stomach
Answer the following multiple-choice question. Question: What is the sac-like organ of the body that is important for both mechanical and chemical digestion? Options: A. stomach B. gall bladder C. kidney D. spleen Which option is correct and why?
The correct answer is: stomach.
All chemical reactions require what to get started?
[ "activation energy", "conductivity energy", "primary energy", "spiked energy" ]
activation energy
Answer the following multiple-choice question. Question: All chemical reactions require what to get started? Options: A. activation energy B. conductivity energy C. primary energy D. spiked energy Which option is correct and why?
The correct answer is: activation energy.
Mitosis is nuclear division during which duplicated chromosomes are segregated and distributed into what?
[ "woman nuclei", "long nuclei", "daughter nuclei", "father nuclei" ]
daughter nuclei
Answer the following multiple-choice question. Question: Mitosis is nuclear division during which duplicated chromosomes are segregated and distributed into what? Options: A. woman nuclei B. long nuclei C. daughter nuclei D. father nuclei Which option is correct and why?
The correct answer is: daughter nuclei.
Movement of water and minerals in the xylem solutes, pressure, gravity, and matric potential are all important for what?
[ "produce water transport", "Moving Water Transport", "plant water transport", "increase water transport" ]
plant water transport
Answer the following multiple-choice question. Question: Movement of water and minerals in the xylem solutes, pressure, gravity, and matric potential are all important for what? Options: A. produce water transport B. Moving Water Transport C. plant water transport D. increase water transport Which option is correct a...
The correct answer is: plant water transport.
The temperature of the box is related to the average speed of what?
[ "light", "earth", "air", "molecules" ]
molecules
Answer the following multiple-choice question. Question: The temperature of the box is related to the average speed of what? Options: A. light B. earth C. air D. molecules Which option is correct and why?
The correct answer is: molecules.
What are organisms that eat just one type of food?
[ "hedonists", "specialists", "devotees", "gluttons" ]
specialists
Answer the following multiple-choice question. Question: What are organisms that eat just one type of food? Options: A. hedonists B. specialists C. devotees D. gluttons Which option is correct and why?
The correct answer is: specialists.
Mechanisms for establishing cellular asymmetries include morphogen gradients, localized determinants, and what other type of interactions?
[ "conductive", "inductive", "reductive", "electromagnetic" ]
inductive
Answer the following multiple-choice question. Question: Mechanisms for establishing cellular asymmetries include morphogen gradients, localized determinants, and what other type of interactions? Options: A. conductive B. inductive C. reductive D. electromagnetic Which option is correct and why?
The correct answer is: inductive.
Biodiversity hot spots are prime candidates for protection because they are prone to what species fate?
[ "extinction", "accumulation", "reduction", "mutation" ]
extinction
Answer the following multiple-choice question. Question: Biodiversity hot spots are prime candidates for protection because they are prone to what species fate? Options: A. extinction B. accumulation C. reduction D. mutation Which option is correct and why?
The correct answer is: extinction.
What are single-celled or colonial organisms that do not have membranebound nuclei?
[ "prokaryotes", "eukaryotes", "viruses", "arthropods" ]
prokaryotes
Answer the following multiple-choice question. Question: What are single-celled or colonial organisms that do not have membranebound nuclei? Options: A. prokaryotes B. eukaryotes C. viruses D. arthropods Which option is correct and why?
The correct answer is: prokaryotes.
Differences in density between water and air lead to differences in what?
[ "pressure", "sound", "resistance", "energy" ]
pressure
Answer the following multiple-choice question. Question: Differences in density between water and air lead to differences in what? Options: A. pressure B. sound C. resistance D. energy Which option is correct and why?
The correct answer is: pressure.
What organizational tool, arguably the best in all of science, lists all the known chemical elements, arranged by atomic number?
[ "spreadsheet", "tide table", "logic table", "periodic table" ]
periodic table
Answer the following multiple-choice question. Question: What organizational tool, arguably the best in all of science, lists all the known chemical elements, arranged by atomic number? Options: A. spreadsheet B. tide table C. logic table D. periodic table Which option is correct and why?
The correct answer is: periodic table.
Solvation involves surrounding ions with what?
[ "molecules", "passive particles", "proteins", "solvent particles" ]
solvent particles
Answer the following multiple-choice question. Question: Solvation involves surrounding ions with what? Options: A. molecules B. passive particles C. proteins D. solvent particles Which option is correct and why?
The correct answer is: solvent particles.
The appendicular skeleton includes all bones of the upper and lower limbs, plus the bones that attach each limb to the what?
[ "dynamic skeleton", "compressed skeleton", "axial skeleton", "literal skeleton" ]
axial skeleton
Answer the following multiple-choice question. Question: The appendicular skeleton includes all bones of the upper and lower limbs, plus the bones that attach each limb to the what? Options: A. dynamic skeleton B. compressed skeleton C. axial skeleton D. literal skeleton Which option is correct and why?
The correct answer is: axial skeleton.
Cow manure can have a second life as a source of what gas?
[ "methane", "ethanol", "freon", "hydrogen" ]
methane
Answer the following multiple-choice question. Question: Cow manure can have a second life as a source of what gas? Options: A. methane B. ethanol C. freon D. hydrogen Which option is correct and why?
The correct answer is: methane.
Eggs reside in the mesohyl, but sperm are carried out of the sponge by what?
[ "air current", "phloem", "ion channels", "water current" ]
water current
Answer the following multiple-choice question. Question: Eggs reside in the mesohyl, but sperm are carried out of the sponge by what? Options: A. air current B. phloem C. ion channels D. water current Which option is correct and why?
The correct answer is: water current.
Population size influences the chances of a species surviving, with very small populations generally at greatest risk of what fate?
[ "mutation", "accumulation", "extinction", "adaptation" ]
extinction
Answer the following multiple-choice question. Question: Population size influences the chances of a species surviving, with very small populations generally at greatest risk of what fate? Options: A. mutation B. accumulation C. extinction D. adaptation Which option is correct and why?
The correct answer is: extinction.
Sound is the transfer of energy from a vibrating object in waves that travel through what?
[ "matter", "water", "time", "light" ]
matter
Answer the following multiple-choice question. Question: Sound is the transfer of energy from a vibrating object in waves that travel through what? Options: A. matter B. water C. time D. light Which option is correct and why?
The correct answer is: matter.
Sterols are a subgroup of what?
[ "steroids", "antibiotics", "nuclides", "nutrients" ]
steroids
Answer the following multiple-choice question. Question: Sterols are a subgroup of what? Options: A. steroids B. antibiotics C. nuclides D. nutrients Which option is correct and why?
The correct answer is: steroids.
Cardiac muscle is only found where?
[ "lung", "brain", "abdomen", "heart" ]
heart
Answer the following multiple-choice question. Question: Cardiac muscle is only found where? Options: A. lung B. brain C. abdomen D. heart Which option is correct and why?
The correct answer is: heart.
What process provides over 99 percent of the energy for life on earth?
[ "photosynthesis", "glycolysis", "farming", "fracking" ]
photosynthesis
Answer the following multiple-choice question. Question: What process provides over 99 percent of the energy for life on earth? Options: A. photosynthesis B. glycolysis C. farming D. fracking Which option is correct and why?
The correct answer is: photosynthesis.
Unlike energy, what doesn’t need to be constantly added to ecosystems because it is recycled through ecosystems?
[ "matter", "vapor", "water", "nutrients" ]
matter
Answer the following multiple-choice question. Question: Unlike energy, what doesn’t need to be constantly added to ecosystems because it is recycled through ecosystems? Options: A. matter B. vapor C. water D. nutrients Which option is correct and why?
The correct answer is: matter.
A colloid is a homogeneous mixture with medium-sized what?
[ "particles", "atoms", "solutions", "molecules" ]
particles
Answer the following multiple-choice question. Question: A colloid is a homogeneous mixture with medium-sized what? Options: A. particles B. atoms C. solutions D. molecules Which option is correct and why?
The correct answer is: particles.
What causes rivers to always flow downhill?
[ "slope", "pressure", "diffusion", "gravity" ]
gravity
Answer the following multiple-choice question. Question: What causes rivers to always flow downhill? Options: A. slope B. pressure C. diffusion D. gravity Which option is correct and why?
The correct answer is: gravity.
What elements do water and hydrogen peroxide consist of?
[ "carbon and oxygen", "calcium and oxygen", "hydrogen and helium", "hydrogen and oxygen" ]
hydrogen and oxygen
Answer the following multiple-choice question. Question: What elements do water and hydrogen peroxide consist of? Options: A. carbon and oxygen B. calcium and oxygen C. hydrogen and helium D. hydrogen and oxygen Which option is correct and why?
The correct answer is: hydrogen and oxygen.
Name the virus that causes cold sores.
[ "eboli", "herpes virus", "Epstein-Barr", "AIDS" ]
herpes virus
Answer the following multiple-choice question. Question: Name the virus that causes cold sores. Options: A. eboli B. herpes virus C. Epstein-Barr D. AIDS Which option is correct and why?
The correct answer is: herpes virus.
Cardiac veins parallel the small cardiac arteries and generally drain into what sinus?
[ "coronary", "lungs", "Veins", "heart" ]
coronary
Answer the following multiple-choice question. Question: Cardiac veins parallel the small cardiac arteries and generally drain into what sinus? Options: A. coronary B. lungs C. Veins D. heart Which option is correct and why?
The correct answer is: coronary.
What is a dip slip fault where the dip of the fault plane is vertical?
[ "strike - theory", "reverse slip", "strike-slip", "incline slip" ]
strike-slip
Answer the following multiple-choice question. Question: What is a dip slip fault where the dip of the fault plane is vertical? Options: A. strike - theory B. reverse slip C. strike-slip D. incline slip Which option is correct and why?
The correct answer is: strike-slip.
The major entrance and exit for the respiratory system is which facial orifice?
[ "ear", "pore", "nose", "mouth" ]
nose
Answer the following multiple-choice question. Question: The major entrance and exit for the respiratory system is which facial orifice? Options: A. ear B. pore C. nose D. mouth Which option is correct and why?
The correct answer is: nose.
Sexual reproduction is the combination of (usually haploid) reproductive cells from two individuals to form a third (usually diploid) unique offspring. sexual reproduction produces offspring with novel combinations of what?
[ "phenotypes", "genes", "cells", "features" ]
genes
Answer the following multiple-choice question. Question: Sexual reproduction is the combination of (usually haploid) reproductive cells from two individuals to form a third (usually diploid) unique offspring. sexual reproduction produces offspring with novel combinations of what? Options: A. phenotypes B. genes C. cel...
The correct answer is: genes.
What kind of reproduction involves just one parent and produces offspring genetically identical to each other and to the parent?
[ "sexual reproduction", "organic reproduction", "asexual reproduction", "microscopic reproduction" ]
asexual reproduction
Answer the following multiple-choice question. Question: What kind of reproduction involves just one parent and produces offspring genetically identical to each other and to the parent? Options: A. sexual reproduction B. organic reproduction C. asexual reproduction D. microscopic reproduction Which option is correct ...
The correct answer is: asexual reproduction.
What do you call the hard case that surrounds the soft parts of some animals?
[ "exoskeleton", "muscles", "shell", "membrane" ]
exoskeleton
Answer the following multiple-choice question. Question: What do you call the hard case that surrounds the soft parts of some animals? Options: A. exoskeleton B. muscles C. shell D. membrane Which option is correct and why?
The correct answer is: exoskeleton.
Choosing to not smoke and using sunscreen are examples of lifestyle choices that help prevent forms of what disease?
[ "pnemonia", "cancer", "viral disease", "bacterial disease" ]
cancer
Answer the following multiple-choice question. Question: Choosing to not smoke and using sunscreen are examples of lifestyle choices that help prevent forms of what disease? Options: A. pnemonia B. cancer C. viral disease D. bacterial disease Which option is correct and why?
The correct answer is: cancer.
What is said about the speed of rotation in systems that create tornadoes?
[ "it is fast", "it is magnetic", "it is unchanged", "it is slow" ]
it is slow
Answer the following multiple-choice question. Question: What is said about the speed of rotation in systems that create tornadoes? Options: A. it is fast B. it is magnetic C. it is unchanged D. it is slow Which option is correct and why?
The correct answer is: it is slow.
In gas exchange, oxygen flows into the blood, and what flows out?
[ "carbon monoxide", "naturally dioxide", "carbon dioxide", "liquid dioxide" ]
carbon dioxide
Answer the following multiple-choice question. Question: In gas exchange, oxygen flows into the blood, and what flows out? Options: A. carbon monoxide B. naturally dioxide C. carbon dioxide D. liquid dioxide Which option is correct and why?
The correct answer is: carbon dioxide.
What happens during the process of digestion?
[ "breakdown of food", "regurgitation", "cell division", "excretion of food" ]
breakdown of food
Answer the following multiple-choice question. Question: What happens during the process of digestion? Options: A. breakdown of food B. regurgitation C. cell division D. excretion of food Which option is correct and why?
The correct answer is: breakdown of food.
What do you call the folded layers of rock where geologists look for oil?
[ "synclines", "crests", "anticlines", "oscillations" ]
anticlines
Answer the following multiple-choice question. Question: What do you call the folded layers of rock where geologists look for oil? Options: A. synclines B. crests C. anticlines D. oscillations Which option is correct and why?
The correct answer is: anticlines.
Cutting forests and clearing land has also increased the amount of what in the atmosphere?
[ "pesticides", "oxygen", "carbon dioxide", "smog" ]
carbon dioxide
Answer the following multiple-choice question. Question: Cutting forests and clearing land has also increased the amount of what in the atmosphere? Options: A. pesticides B. oxygen C. carbon dioxide D. smog Which option is correct and why?
The correct answer is: carbon dioxide.
Microevolution occurs in a population when what frequencies change over time?
[ "molecule", "eukaryote", "allele", "antenna" ]
allele
Answer the following multiple-choice question. Question: Microevolution occurs in a population when what frequencies change over time? Options: A. molecule B. eukaryote C. allele D. antenna Which option is correct and why?
The correct answer is: allele.
What is the alkaline hydrolysis reaction of an ester called?
[ "saponification", "instantiation", "fermentation", "resorption" ]
saponification
Answer the following multiple-choice question. Question: What is the alkaline hydrolysis reaction of an ester called? Options: A. saponification B. instantiation C. fermentation D. resorption Which option is correct and why?
The correct answer is: saponification.
What is the time interval required for one complete wave to pass a point called?
[ "period", "cycle", "half-life", "minute" ]
period
Answer the following multiple-choice question. Question: What is the time interval required for one complete wave to pass a point called? Options: A. period B. cycle C. half-life D. minute Which option is correct and why?
The correct answer is: period.
Plant-like protists are autotrophs, meaning they make their own what?
[ "spores", "food", "flowers", "molds" ]
food
Answer the following multiple-choice question. Question: Plant-like protists are autotrophs, meaning they make their own what? Options: A. spores B. food C. flowers D. molds Which option is correct and why?
The correct answer is: food.
In what form do plants and animals store sugar for later use?
[ "management polysaccharides", "storage polysaccharides", "processing polysaccharides", "carrying polysaccharides" ]
storage polysaccharides
Answer the following multiple-choice question. Question: In what form do plants and animals store sugar for later use? Options: A. management polysaccharides B. storage polysaccharides C. processing polysaccharides D. carrying polysaccharides Which option is correct and why?
The correct answer is: storage polysaccharides.
What forces the fetus out of the uterus?
[ "delayed childbirth", "continuous strong contractions", "biological clock", "deep breathing" ]
continuous strong contractions
Answer the following multiple-choice question. Question: What forces the fetus out of the uterus? Options: A. delayed childbirth B. continuous strong contractions C. biological clock D. deep breathing Which option is correct and why?
The correct answer is: continuous strong contractions.
The large and small intestine are both divided into how many parts?
[ "6", "8", "3", "2" ]
3
Answer the following multiple-choice question. Question: The large and small intestine are both divided into how many parts? Options: A. 6 B. 8 C. 3 D. 2 Which option is correct and why?
The correct answer is: 3.
If everything in a system stays the same but the pressure deceases, gas bubbles will change in what way?
[ "they get bigger", "they get smaller", "they multiply", "they pop" ]
they get bigger
Answer the following multiple-choice question. Question: If everything in a system stays the same but the pressure deceases, gas bubbles will change in what way? Options: A. they get bigger B. they get smaller C. they multiply D. they pop Which option is correct and why?
The correct answer is: they get bigger.
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.
The outer layer of what anatomical structure is so tough that it keeps out most pathogens?
[ "liver", "bark", "steel", "skin" ]
skin
Answer the following multiple-choice question. Question: The outer layer of what anatomical structure is so tough that it keeps out most pathogens? Options: A. liver B. bark C. steel D. skin Which option is correct and why?
The correct answer is: skin.
The process of a liquid becoming a gas is called boiling, while the process of a solid becoming a gas is called what?
[ "sublimation", "Boiling", "Melting", "vaporization" ]
sublimation
Answer the following multiple-choice question. Question: The process of a liquid becoming a gas is called boiling, while the process of a solid becoming a gas is called what? Options: A. sublimation B. Boiling C. Melting D. vaporization Which option is correct and why?
The correct answer is: sublimation.
How does the nucleus divide during nuclear fission?
[ "equally", "asymmetrically", "evenly", "biochemically" ]
asymmetrically
Answer the following multiple-choice question. Question: How does the nucleus divide during nuclear fission? Options: A. equally B. asymmetrically C. evenly D. biochemically Which option is correct and why?
The correct answer is: asymmetrically.
How do heavy alkanes affect the skin?
[ "form a protective layer", "they do not affect the skin", "damage the skin", "color the skin" ]
form a protective layer
Answer the following multiple-choice question. Question: How do heavy alkanes affect the skin? Options: A. form a protective layer B. they do not affect the skin C. damage the skin D. color the skin Which option is correct and why?
The correct answer is: form a protective layer.
If an electric current passes through water, water molecules break down into molecules of what?
[ "hydrogen and carbon", "carbon and oxygen", "hydrogen and oxygen", "oxygen and methane" ]
hydrogen and oxygen
Answer the following multiple-choice question. Question: If an electric current passes through water, water molecules break down into molecules of what? Options: A. hydrogen and carbon B. carbon and oxygen C. hydrogen and oxygen D. oxygen and methane Which option is correct and why?
The correct answer is: hydrogen and oxygen.
What makes luminous dials glow in the dark?
[ "devil substances", "eerie substances", "polymer substances", "phosphorescent substances" ]
phosphorescent substances
Answer the following multiple-choice question. Question: What makes luminous dials glow in the dark? Options: A. devil substances B. eerie substances C. polymer substances D. phosphorescent substances Which option is correct and why?
The correct answer is: phosphorescent substances.
What liquid is referred to as the "universal solvent"?
[ "water", "gasoline", "bromine", "blood" ]
water
Answer the following multiple-choice question. Question: What liquid is referred to as the "universal solvent"? Options: A. water B. gasoline C. bromine D. blood Which option is correct and why?
The correct answer is: water.
What is the active ingredient in cloves?
[ "eugenol", "thiamine", "nicotine", "methyl" ]
eugenol
Answer the following multiple-choice question. Question: What is the active ingredient in cloves? Options: A. eugenol B. thiamine C. nicotine D. methyl Which option is correct and why?
The correct answer is: eugenol.
What term means the adjusting of systems within a cell in order to restore balance or maintain equilibrium?
[ "gaseous regulation", "aftertouch regulation", "systemic regulation", "homeostatic regulation" ]
homeostatic regulation
Answer the following multiple-choice question. Question: What term means the adjusting of systems within a cell in order to restore balance or maintain equilibrium? Options: A. gaseous regulation B. aftertouch regulation C. systemic regulation D. homeostatic regulation Which option is correct and why?
The correct answer is: homeostatic regulation.
What is the name of the formation that regulates sleep and arousal?
[ "reticular formation", "gelechioidea formation", "epithelial formation", "sleep-arousal formation" ]
reticular formation
Answer the following multiple-choice question. Question: What is the name of the formation that regulates sleep and arousal? Options: A. reticular formation B. gelechioidea formation C. epithelial formation D. sleep-arousal formation Which option is correct and why?
The correct answer is: reticular formation.
What do the gonadotropins regulate?
[ "gametogenesis", "mitosis", "epigenesis", "temperature" ]
gametogenesis
Answer the following multiple-choice question. Question: What do the gonadotropins regulate? Options: A. gametogenesis B. mitosis C. epigenesis D. temperature Which option is correct and why?
The correct answer is: gametogenesis.
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.
What celestial bodies are born in clouds of gas and dust called nebulas?
[ "comets", "planets", "galaxies", "stars" ]
stars
Answer the following multiple-choice question. Question: What celestial bodies are born in clouds of gas and dust called nebulas? Options: A. comets B. planets C. galaxies D. stars Which option is correct and why?
The correct answer is: stars.
What does a hydrolase use to split molecules?
[ "air", "momentum", "water", "gas" ]
water
Answer the following multiple-choice question. Question: What does a hydrolase use to split molecules? Options: A. air B. momentum C. water D. gas Which option is correct and why?
The correct answer is: water.
What term is used to describe the transfer of thermal energy by particles moving through a fluid?
[ "diffusion", "convection", "condensation", "evaporation" ]
convection
Answer the following multiple-choice question. Question: What term is used to describe the transfer of thermal energy by particles moving through a fluid? Options: A. diffusion B. convection C. condensation D. evaporation Which option is correct and why?
The correct answer is: convection.
What is the source of precipitation?
[ "the atmosphere", "pollution", "the sea", "clouds" ]
the atmosphere
Answer the following multiple-choice question. Question: What is the source of precipitation? Options: A. the atmosphere B. pollution C. the sea D. clouds Which option is correct and why?
The correct answer is: the atmosphere.
How does bacteria reproduce?
[ "pollination", "sexual reproduction", "binary fission", "budding" ]
binary fission
Answer the following multiple-choice question. Question: How does bacteria reproduce? Options: A. pollination B. sexual reproduction C. binary fission D. budding Which option is correct and why?
The correct answer is: binary fission.
What causes holes in bread?
[ "heat", "alcohol fermentation", "moisture", "yeast fermentation" ]
yeast fermentation
Answer the following multiple-choice question. Question: What causes holes in bread? Options: A. heat B. alcohol fermentation C. moisture D. yeast fermentation Which option is correct and why?
The correct answer is: yeast fermentation.
Which bone is derived from the fusion of four very small coccygeal vertebrae?
[ "clavicle", "coccyx", "cranium", "femur" ]
coccyx
Answer the following multiple-choice question. Question: Which bone is derived from the fusion of four very small coccygeal vertebrae? Options: A. clavicle B. coccyx C. cranium D. femur Which option is correct and why?
The correct answer is: coccyx.
Researchers have long based their hypotheses about animal phylogeny on what?
[ "morphological data", "manipulative data", "distinctive data", "longitudinal data" ]
morphological data
Answer the following multiple-choice question. Question: Researchers have long based their hypotheses about animal phylogeny on what? Options: A. morphological data B. manipulative data C. distinctive data D. longitudinal data Which option is correct and why?
The correct answer is: morphological data.