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Porpoises move fastest in
[ "dungeons", "lava", "deserts", "saltwater" ]
saltwater
Answer the following multiple-choice question. Question: Porpoises move fastest in Options: A. dungeons B. lava C. deserts D. saltwater Which option is correct and why?
The correct answer is: saltwater.
what makes it possible for an animal to move?
[ "Limbs", "four limbs", "digestion", "stamina", "motility", "magnets", "radiation", "weather" ]
digestion
Answer the following multiple-choice question. Question: what makes it possible for an animal to move? Options: A. Limbs B. four limbs C. digestion D. stamina E. motility F. magnets G. radiation H. weather Which option is correct and why?
The correct answer is: digestion.
An example of breaking down is
[ "cutting an apple into slices", "putting a jigsaw puzzle together", "mixing cake ingredients together", "applying coats of paint onto a wall" ]
cutting an apple into slices
Answer the following multiple-choice question. Question: An example of breaking down is Options: A. cutting an apple into slices B. putting a jigsaw puzzle together C. mixing cake ingredients together D. applying coats of paint onto a wall Which option is correct and why?
The correct answer is: cutting an apple into slices.
What is formed by electrons separating from interstellar gases?
[ "an object", "Energy.", "proteins", "led lights", "air", "light", "plasma", "dust" ]
plasma
Answer the following multiple-choice question. Question: What is formed by electrons separating from interstellar gases? Options: A. an object B. Energy. C. proteins D. led lights E. air F. light G. plasma H. dust Which option is correct and why?
The correct answer is: plasma.
What shape is the lens of the eye?
[ "angular", "concave", "spherical", "convex" ]
convex
Answer the following multiple-choice question. Question: What shape is the lens of the eye? Options: A. angular B. concave C. spherical D. convex Which option is correct and why?
The correct answer is: convex.
What ear structure has three fluid filled ducts, including the organ of corti, where sound waves in air go to vibration?
[ "saccule", "semicirciular canal", "cochlea", "utricle" ]
cochlea
Answer the following multiple-choice question. Question: What ear structure has three fluid filled ducts, including the organ of corti, where sound waves in air go to vibration? Options: A. saccule B. semicirciular canal C. cochlea D. utricle Which option is correct and why?
The correct answer is: cochlea.
What part of the plant has a root end and a shoot end?
[ "leaves", "pistol", "axis", "radius" ]
axis
Answer the following multiple-choice question. Question: What part of the plant has a root end and a shoot end? Options: A. leaves B. pistol C. axis D. radius Which option is correct and why?
The correct answer is: axis.
Why do hummingbirds have long narrow bills?
[ "for protection against predators", "to store food", "to feed their offspring", "to reach the nectar at the bottom of flowers" ]
to reach the nectar at the bottom of flowers
Answer the following multiple-choice question. Question: Why do hummingbirds have long narrow bills? Options: A. for protection against predators B. to store food C. to feed their offspring D. to reach the nectar at the bottom of flowers Which option is correct and why?
The correct answer is: to reach the nectar at the bottom of flowers.
What happens to the recessive traits in the offspring of a hybridization?
[ "they disappear", "they replicate", "remain recessive", "they dominate" ]
they disappear
Answer the following multiple-choice question. Question: What happens to the recessive traits in the offspring of a hybridization? Options: A. they disappear B. they replicate C. remain recessive D. they dominate Which option is correct and why?
The correct answer is: they disappear.
A pot of potatoes is left on a stove at medium heat. The person cooking forgets that the potatoes are cooking and they cook for twelve hours. When the person checks on them after half a day,
[ "they are cold", "they are fine", "they are singed", "they are lukewarm" ]
they are singed
Answer the following multiple-choice question. Question: A pot of potatoes is left on a stove at medium heat. The person cooking forgets that the potatoes are cooking and they cook for twelve hours. When the person checks on them after half a day, Options: A. they are cold B. they are fine C. they are singed D. they are lukewarm Which option is correct and why?
The correct answer is: they are singed.
When gas pressure-forces are used to move an object the work is done on the object by?
[ "expanding gas", "kinetic energy", "contracting gas", "gravitational pull" ]
expanding gas
Answer the following multiple-choice question. Question: When gas pressure-forces are used to move an object the work is done on the object by? Options: A. expanding gas B. kinetic energy C. contracting gas D. gravitational pull Which option is correct and why?
The correct answer is: expanding gas.
What term is defined as the ability to locate objects in the dark by bouncing sound waves off them.
[ "thermodynamics", "morphology", "night vision", "echolocation" ]
echolocation
Answer the following multiple-choice question. Question: What term is defined as the ability to locate objects in the dark by bouncing sound waves off them. Options: A. thermodynamics B. morphology C. night vision D. echolocation Which option is correct and why?
The correct answer is: echolocation.
What can vaccines do?
[ "cause euphoria", "major threat to health", "it protects them", "protect plants", "Keep someone from disease", "cause a disease", "cause a vasectomy", "rapid expansion" ]
Keep someone from disease
Answer the following multiple-choice question. Question: What can vaccines do? Options: A. cause euphoria B. major threat to health C. it protects them D. protect plants E. Keep someone from disease F. cause a disease G. cause a vasectomy H. rapid expansion Which option is correct and why?
The correct answer is: Keep someone from disease.
Loss of energy is the reason that what typically has few levels?
[ "food chain", "humans", "the atmosphere", "video games" ]
food chain
Answer the following multiple-choice question. Question: Loss of energy is the reason that what typically has few levels? Options: A. food chain B. humans C. the atmosphere D. video games Which option is correct and why?
The correct answer is: food chain.
Prokaryotic cells have a cell wall located outside of the __________?
[ "plasma membrane", "chloroplasts", "epidermis", "chromosomes" ]
plasma membrane
Answer the following multiple-choice question. Question: Prokaryotic cells have a cell wall located outside of the __________? Options: A. plasma membrane B. chloroplasts C. epidermis D. chromosomes Which option is correct and why?
The correct answer is: plasma membrane.
What are used to produce energy by burning?
[ "fossil fuels", "cigarettes", "organic molecules", "Firecrackers", "carbon dioxide", "atoms", "dust", "batteries" ]
fossil fuels
Answer the following multiple-choice question. Question: What are used to produce energy by burning? Options: A. fossil fuels B. cigarettes C. organic molecules D. Firecrackers E. carbon dioxide F. atoms G. dust H. batteries Which option is correct and why?
The correct answer is: fossil fuels.
In what form is most of the earth's freshwater?
[ "gas", "frozen", "liqued", "steam" ]
frozen
Answer the following multiple-choice question. Question: In what form is most of the earth's freshwater? Options: A. gas B. frozen C. liqued D. steam Which option is correct and why?
The correct answer is: frozen.
What is a rock exposed to if it's undergoing metamorphism?
[ "humidity and pressure", "gravity and precipitation", "time and energy", "heat and pressure" ]
heat and pressure
Answer the following multiple-choice question. Question: What is a rock exposed to if it's undergoing metamorphism? Options: A. humidity and pressure B. gravity and precipitation C. time and energy D. heat and pressure Which option is correct and why?
The correct answer is: heat and pressure.
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what causes pollution?
[ "carbon dioxide", "deforestation", "flooding", "The atmosphere", "clouds", "running water", "plant respiration", "volkswagen" ]
volkswagen
Answer the following multiple-choice question. Question: what causes pollution? Options: A. carbon dioxide B. deforestation C. flooding D. The atmosphere E. clouds F. running water G. plant respiration H. volkswagen Which option is correct and why?
The correct answer is: volkswagen.
The majority of cells in blood are erythrocytes or?
[ "s.a blood cells", "50.3 blood cells", "red blood cells", "Deep Blood Cells" ]
red blood cells
Answer the following multiple-choice question. Question: The majority of cells in blood are erythrocytes or? Options: A. s.a blood cells B. 50.3 blood cells C. red blood cells D. Deep Blood Cells Which option is correct and why?
The correct answer is: red blood cells.
A person pushing energy through a metal beam will cause something to
[ "electrify", "crowd", "hollow out", "precipitate" ]
electrify
Answer the following multiple-choice question. Question: A person pushing energy through a metal beam will cause something to Options: A. electrify B. crowd C. hollow out D. precipitate Which option is correct and why?
The correct answer is: electrify.
Which of the following would be a reason you are sick?
[ "a cut on your thumb allowed bacteria inside", "your hair follicles get dirt on them", "your stomach digested a delicious breakfast", "your nose allowed water inside" ]
a cut on your thumb allowed bacteria inside
Answer the following multiple-choice question. Question: Which of the following would be a reason you are sick? Options: A. a cut on your thumb allowed bacteria inside B. your hair follicles get dirt on them C. your stomach digested a delicious breakfast D. your nose allowed water inside Which option is correct and why?
The correct answer is: a cut on your thumb allowed bacteria inside.
What elements tend to conduct well?
[ "gases", "metals", "organics", "oils" ]
metals
Answer the following multiple-choice question. Question: What elements tend to conduct well? Options: A. gases B. metals C. organics D. oils Which option is correct and why?
The correct answer is: metals.
What type of charge does a neutron have?
[ "neutral or no charge", "positive charge", "half charge", "negative charge" ]
neutral or no charge
Answer the following multiple-choice question. Question: What type of charge does a neutron have? Options: A. neutral or no charge B. positive charge C. half charge D. negative charge Which option is correct and why?
The correct answer is: neutral or no charge.
Operating an automobile usually requires what from gasoline?
[ "hydrogen and oxygen", "adjusting the seats", "washing the windshield", "heat energy", "energy pollution", "honking the horn", "scarce resources", "food and shelter" ]
energy pollution
Answer the following multiple-choice question. Question: Operating an automobile usually requires what from gasoline? Options: A. hydrogen and oxygen B. adjusting the seats C. washing the windshield D. heat energy E. energy pollution F. honking the horn G. scarce resources H. food and shelter Which option is correct and why?
The correct answer is: energy pollution.
Building housing developments usually requires replacing what?
[ "money", "gold reserves", "deuterostomes", "one celled organisms", "loose soil", "swamp vegetation", "animal burrows", "clocks" ]
animal burrows
Answer the following multiple-choice question. Question: Building housing developments usually requires replacing what? Options: A. money B. gold reserves C. deuterostomes D. one celled organisms E. loose soil F. swamp vegetation G. animal burrows H. clocks Which option is correct and why?
The correct answer is: animal burrows.
What is the testing for disease in a fetus or embryo?
[ "complete screening", "placental screening", "prenatal screening", "dynamic screening" ]
prenatal screening
Answer the following multiple-choice question. Question: What is the testing for disease in a fetus or embryo? Options: A. complete screening B. placental screening C. prenatal screening D. dynamic screening Which option is correct and why?
The correct answer is: prenatal screening.
What are most stis caused by?
[ "vaccines", "bacteria", "viruses", "parasites" ]
bacteria
Answer the following multiple-choice question. Question: What are most stis caused by? Options: A. vaccines B. bacteria C. viruses D. parasites Which option is correct and why?
The correct answer is: bacteria.
Which of the following is an example of decomposition?
[ "a dog eating dog food", "something growing on a dead tree trunk", "a lion eating a gazelle", "a parrot eating bird seed" ]
something growing on a dead tree trunk
Answer the following multiple-choice question. Question: Which of the following is an example of decomposition? Options: A. a dog eating dog food B. something growing on a dead tree trunk C. a lion eating a gazelle D. a parrot eating bird seed Which option is correct and why?
The correct answer is: something growing on a dead tree trunk.
During photosynthesis plants make their own
[ "magic", "candy", "sustenance", "cars" ]
sustenance
Answer the following multiple-choice question. Question: During photosynthesis plants make their own Options: A. magic B. candy C. sustenance D. cars Which option is correct and why?
The correct answer is: sustenance.
What organ system is different in men and women?
[ "nervous organs", "respratory organs", "reproductive organs", "lymphatic organs" ]
reproductive organs
Answer the following multiple-choice question. Question: What organ system is different in men and women? Options: A. nervous organs B. respratory organs C. reproductive organs D. lymphatic organs Which option is correct and why?
The correct answer is: reproductive organs.
What is heard when sound waves bounce back from a surface that they can't pass through?
[ "echo", "loop", "ultrasound", "radio" ]
echo
Answer the following multiple-choice question. Question: What is heard when sound waves bounce back from a surface that they can't pass through? Options: A. echo B. loop C. ultrasound D. radio Which option is correct and why?
The correct answer is: echo.
What is an insect's hard outer exoskeleton made out of?
[ "melanin", "casein", "chitin", "lectin" ]
chitin
Answer the following multiple-choice question. Question: What is an insect's hard outer exoskeleton made out of? Options: A. melanin B. casein C. chitin D. lectin Which option is correct and why?
The correct answer is: chitin.
Wide tree rings mean
[ "happiness", "thriving", "money", "magic" ]
thriving
Answer the following multiple-choice question. Question: Wide tree rings mean Options: A. happiness B. thriving C. money D. magic Which option is correct and why?
The correct answer is: thriving.
While components of a mixture can be separated by physical means, the components of a pure substance can only be broken down through what means?
[ "chemical", "mechanical", "thermal", "radiation" ]
chemical
Answer the following multiple-choice question. Question: While components of a mixture can be separated by physical means, the components of a pure substance can only be broken down through what means? Options: A. chemical B. mechanical C. thermal D. radiation Which option is correct and why?
The correct answer is: chemical.
Where do producers convert carbon dioxide, water, and solar energy into carbohydrates?
[ "Organic compounds", "the sunlight", "circulatory systems", "the membrane", "single-celled organisms", "the chloroplasts", "Earth's atmosphere", "the cell wall" ]
the chloroplasts
Answer the following multiple-choice question. Question: Where do producers convert carbon dioxide, water, and solar energy into carbohydrates? Options: A. Organic compounds B. the sunlight C. circulatory systems D. the membrane E. single-celled organisms F. the chloroplasts G. Earth's atmosphere H. the cell wall Which option is correct and why?
The correct answer is: the chloroplasts.
By 180 million years ago, pangaea began to do what?
[ "break up", "combine", "grow", "freeze" ]
break up
Answer the following multiple-choice question. Question: By 180 million years ago, pangaea began to do what? Options: A. break up B. combine C. grow D. freeze Which option is correct and why?
The correct answer is: break up.
The attraction between all objects in the universe is known as ______.
[ "variation", "electricity", "magnetism", "gravity" ]
gravity
Answer the following multiple-choice question. Question: The attraction between all objects in the universe is known as ______. Options: A. variation B. electricity C. magnetism D. gravity Which option is correct and why?
The correct answer is: gravity.
Coral and the algae living inside of them have what type of relationship, since the algae relies on the coral to stay close to the water's surface?
[ "parasitic", "peculiar", "symbiotic", "competitive" ]
symbiotic
Answer the following multiple-choice question. Question: Coral and the algae living inside of them have what type of relationship, since the algae relies on the coral to stay close to the water's surface? Options: A. parasitic B. peculiar C. symbiotic D. competitive Which option is correct and why?
The correct answer is: symbiotic.
What can cause the immune system to not work properly?
[ "cigarettes", "Malnutrition", "burning coal", "Healthy food", "Exercise", "Good health", "Allergies", "Pesticides" ]
Malnutrition
Answer the following multiple-choice question. Question: What can cause the immune system to not work properly? Options: A. cigarettes B. Malnutrition C. burning coal D. Healthy food E. Exercise F. Good health G. Allergies H. Pesticides Which option is correct and why?
The correct answer is: Malnutrition.
The presence of what in leaf cells makes most leaves appear green?
[ "hydrogen", "sodium", "chlorophyll", "carbonate" ]
chlorophyll
Answer the following multiple-choice question. Question: The presence of what in leaf cells makes most leaves appear green? Options: A. hydrogen B. sodium C. chlorophyll D. carbonate Which option is correct and why?
The correct answer is: chlorophyll.
While the numerical aperture can be used to compare resolutions of various objectives, it does not indicate how far the lens could be from the what?
[ "focal point", "specimen", "diameter", "microscope" ]
specimen
Answer the following multiple-choice question. Question: While the numerical aperture can be used to compare resolutions of various objectives, it does not indicate how far the lens could be from the what? Options: A. focal point B. specimen C. diameter D. microscope Which option is correct and why?
The correct answer is: specimen.
An inclined plane is a good example of what kind of machine?
[ "simple", "weak", "complex", "strong" ]
simple
Answer the following multiple-choice question. Question: An inclined plane is a good example of what kind of machine? Options: A. simple B. weak C. complex D. strong Which option is correct and why?
The correct answer is: simple.
Eyes can detect images and see light using what?
[ "vibrations", "sight", "lenses", "sound", "Energy.", "Energy", "touch", "voltage" ]
sight
Answer the following multiple-choice question. Question: Eyes can detect images and see light using what? Options: A. vibrations B. sight C. lenses D. sound E. Energy. F. Energy G. touch H. voltage Which option is correct and why?
The correct answer is: sight.
It's easier to spot something small twenty feet away on a cloudless day if
[ "the object is buried an inch underground", "the object is a dirty black object on black ground", "the object is a polished metal ring", "the object is a dull green marble lying in live grass" ]
the object is a polished metal ring
Answer the following multiple-choice question. Question: It's easier to spot something small twenty feet away on a cloudless day if Options: A. the object is buried an inch underground B. the object is a dirty black object on black ground C. the object is a polished metal ring D. the object is a dull green marble lying in live grass Which option is correct and why?
The correct answer is: the object is a polished metal ring.
plants grow healthier if they are protected from what
[ "cold", "soil", "forces", "mold", "sun", "loss", "mildew", "rain" ]
cold
Answer the following multiple-choice question. Question: plants grow healthier if they are protected from what Options: A. cold B. soil C. forces D. mold E. sun F. loss G. mildew H. rain Which option is correct and why?
The correct answer is: cold.
Many plants generate root pressure during which phase?
[ "developing season", "growing season", "flowering season", "end of life cycle" ]
growing season
Answer the following multiple-choice question. Question: Many plants generate root pressure during which phase? Options: A. developing season B. growing season C. flowering season D. end of life cycle Which option is correct and why?
The correct answer is: growing season.
What are materials that can be magnetized called?
[ "Metal material", "ferromagnetic materials", "interstitial materials", "catalytic materials" ]
ferromagnetic materials
Answer the following multiple-choice question. Question: What are materials that can be magnetized called? Options: A. Metal material B. ferromagnetic materials C. interstitial materials D. catalytic materials Which option is correct and why?
The correct answer is: ferromagnetic materials.
We can calculate a speed if we know a number of
[ "gallons", "millimeters", "dollars", "pounds" ]
millimeters
Answer the following multiple-choice question. Question: We can calculate a speed if we know a number of Options: A. gallons B. millimeters C. dollars D. pounds Which option is correct and why?
The correct answer is: millimeters.
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What causes growth in organisms?
[ "cell isolation", "cell division", "Chemical energy", "Plant reproduction", "burning coal", "glucose", "hormones", "cell separation" ]
cell division
Answer the following multiple-choice question. Question: What causes growth in organisms? Options: A. cell isolation B. cell division C. Chemical energy D. Plant reproduction E. burning coal F. glucose G. hormones H. cell separation Which option is correct and why?
The correct answer is: cell division.
A type of animal that can shed is a
[ "frog", "monkey", "chicken", "salmon" ]
monkey
Answer the following multiple-choice question. Question: A type of animal that can shed is a Options: A. frog B. monkey C. chicken D. salmon Which option is correct and why?
The correct answer is: monkey.
Nucleic acids are polymers made of monomers called what?
[ "peptides", "loops", "carotenoids", "nucleotides" ]
nucleotides
Answer the following multiple-choice question. Question: Nucleic acids are polymers made of monomers called what? Options: A. peptides B. loops C. carotenoids D. nucleotides Which option is correct and why?
The correct answer is: nucleotides.
Metabolism is controlled by regulation of what?
[ "sequence activity", "nucleus activity", "cell activity", "enzyme activity" ]
enzyme activity
Answer the following multiple-choice question. Question: Metabolism is controlled by regulation of what? Options: A. sequence activity B. nucleus activity C. cell activity D. enzyme activity Which option is correct and why?
The correct answer is: enzyme activity.
Living things all require energy for what?
[ "dying", "observing", "staying perky", "decaying" ]
staying perky
Answer the following multiple-choice question. Question: Living things all require energy for what? Options: A. dying B. observing C. staying perky D. decaying Which option is correct and why?
The correct answer is: staying perky.
The first reaction of the body to tissue damage or infection is called the what response?
[ "retaliatory", "defensive", "inflammatory", "harmful" ]
inflammatory
Answer the following multiple-choice question. Question: The first reaction of the body to tissue damage or infection is called the what response? Options: A. retaliatory B. defensive C. inflammatory D. harmful Which option is correct and why?
The correct answer is: inflammatory.
The volume of a regularly shaped solid can be calculated from its what?
[ "layers", "mass", "density", "dimensions" ]
dimensions
Answer the following multiple-choice question. Question: The volume of a regularly shaped solid can be calculated from its what? Options: A. layers B. mass C. density D. dimensions Which option is correct and why?
The correct answer is: dimensions.
What can thorough cooking do to food?
[ "make it inedible", "extend the shelf life", "Damages them", "make it colder", "make it saltier", "converting electricity to heat", "it keeps an organism warm", "get chemical reactions started" ]
extend the shelf life
Answer the following multiple-choice question. Question: What can thorough cooking do to food? Options: A. make it inedible B. extend the shelf life C. Damages them D. make it colder E. make it saltier F. converting electricity to heat G. it keeps an organism warm H. get chemical reactions started Which option is correct and why?
The correct answer is: extend the shelf life.
What is produced by a laser?
[ "work", "Collagen", "emissions", "a wave", "sound", "noise", "energy", "unique" ]
energy
Answer the following multiple-choice question. Question: What is produced by a laser? Options: A. work B. Collagen C. emissions D. a wave E. sound F. noise G. energy H. unique Which option is correct and why?
The correct answer is: energy.
Antibodies are large, Y-shaped proteins that recognize and bind to:
[ "humans", "A Greek letter", "bones", "the skin", "animals", "inorganic items", "immunogens", "water" ]
immunogens
Answer the following multiple-choice question. Question: Antibodies are large, Y-shaped proteins that recognize and bind to: Options: A. humans B. A Greek letter C. bones D. the skin E. animals F. inorganic items G. immunogens H. water Which option is correct and why?
The correct answer is: immunogens.
Oxytocin, which stimulates the contractions of labor, is a type of what?
[ "steroid", "hormone", "metabolite", "inhibitor" ]
hormone
Answer the following multiple-choice question. Question: Oxytocin, which stimulates the contractions of labor, is a type of what? Options: A. steroid B. hormone C. metabolite D. inhibitor Which option is correct and why?
The correct answer is: hormone.
What does frozen water break?
[ "lake", "ice", "crust", "sky", "rivers", "nektar", "Weight", "rock" ]
rock
Answer the following multiple-choice question. Question: What does frozen water break? Options: A. lake B. ice C. crust D. sky E. rivers F. nektar G. Weight H. rock Which option is correct and why?
The correct answer is: rock.
Hormones cause cellular changes by binding to receptors on these?
[ "fighter cells", "reach cells", "target cells", "able cells" ]
target cells
Answer the following multiple-choice question. Question: Hormones cause cellular changes by binding to receptors on these? Options: A. fighter cells B. reach cells C. target cells D. able cells Which option is correct and why?
The correct answer is: target cells.
Plant cuttings are an example of what type of reproduction?
[ "autosexual", "heterosexual", "asexual", "homosexual" ]
asexual
Answer the following multiple-choice question. Question: Plant cuttings are an example of what type of reproduction? Options: A. autosexual B. heterosexual C. asexual D. homosexual Which option is correct and why?
The correct answer is: asexual.
Why do waves travel faster through solids?
[ "particles fuse together", "particles closer together", "particles range together", "particles pipe together" ]
particles closer together
Answer the following multiple-choice question. Question: Why do waves travel faster through solids? Options: A. particles fuse together B. particles closer together C. particles range together D. particles pipe together Which option is correct and why?
The correct answer is: particles closer together.
What term is used to describe the organism that is invaded and often harmed by a pathogen?
[ "initial", "parent", "guardian", "host" ]
host
Answer the following multiple-choice question. Question: What term is used to describe the organism that is invaded and often harmed by a pathogen? Options: A. initial B. parent C. guardian D. host Which option is correct and why?
The correct answer is: host.
What does the moving piston in an engine turn?
[ "hammer", "muffler", "brake", "crankshaft" ]
crankshaft
Answer the following multiple-choice question. Question: What does the moving piston in an engine turn? Options: A. hammer B. muffler C. brake D. crankshaft Which option is correct and why?
The correct answer is: crankshaft.
What can be used to speed up biochemical reactions?
[ "proteins", "carbohydrates", "hormones", "enzymes" ]
enzymes
Answer the following multiple-choice question. Question: What can be used to speed up biochemical reactions? Options: A. proteins B. carbohydrates C. hormones D. enzymes Which option is correct and why?
The correct answer is: enzymes.
earthquakes are caused by shifts in what?
[ "earth", "volcanoes", "rocks", "plates", "Movement", "ground", "rain", "lightning" ]
plates
Answer the following multiple-choice question. Question: earthquakes are caused by shifts in what? Options: A. earth B. volcanoes C. rocks D. plates E. Movement F. ground G. rain H. lightning Which option is correct and why?
The correct answer is: plates.
The offspring of two living things with white eyes have what color eyes?
[ "white", "tiny", "pigeons", "green", "alleles", "black", "similar", "yellow" ]
white
Answer the following multiple-choice question. Question: The offspring of two living things with white eyes have what color eyes? Options: A. white B. tiny C. pigeons D. green E. alleles F. black G. similar H. yellow Which option is correct and why?
The correct answer is: white.
The variation in a sample can be represented by what quantity, which means the total spread of values?
[ "range", "mode", "median", "variety" ]
range
Answer the following multiple-choice question. Question: The variation in a sample can be represented by what quantity, which means the total spread of values? Options: A. range B. mode C. median D. variety Which option is correct and why?
The correct answer is: range.
Laser anemometers help manufacturers of cars, airplanes and spacecraft to produce efficient vehicle designs that
[ "increase the gas mileage of the vehicles", "increase the drag from air moving past them", "decrease exhaust fumes from the vehicles", "reduce resistance from air moving past them" ]
reduce resistance from air moving past them
Answer the following multiple-choice question. Question: Laser anemometers help manufacturers of cars, airplanes and spacecraft to produce efficient vehicle designs that Options: A. increase the gas mileage of the vehicles B. increase the drag from air moving past them C. decrease exhaust fumes from the vehicles D. reduce resistance from air moving past them Which option is correct and why?
The correct answer is: reduce resistance from air moving past them.
This bodily defense function attacks pathogens and includes inflammatory response and phagocytosis?
[ "second line of defense", "first line of defense", "vomitting", "third line of defense" ]
second line of defense
Answer the following multiple-choice question. Question: This bodily defense function attacks pathogens and includes inflammatory response and phagocytosis? Options: A. second line of defense B. first line of defense C. vomitting D. third line of defense Which option is correct and why?
The correct answer is: second line of defense.
The flow of water through the sponge is unidirectional, driven by the beating of what?
[ "cilia", "flagella", "antennae", "fin" ]
flagella
Answer the following multiple-choice question. Question: The flow of water through the sponge is unidirectional, driven by the beating of what? Options: A. cilia B. flagella C. antennae D. fin Which option is correct and why?
The correct answer is: flagella.
What happens when light hits water?
[ "flow of electrons", "massive damage", "It gets heated up", "Winds are formed", "Rainbows are formed", "Tornadoes are formed", "Heat energy", "Hurricanes are formed" ]
Rainbows are formed
Answer the following multiple-choice question. Question: What happens when light hits water? Options: A. flow of electrons B. massive damage C. It gets heated up D. Winds are formed E. Rainbows are formed F. Tornadoes are formed G. Heat energy H. Hurricanes are formed Which option is correct and why?
The correct answer is: Rainbows are formed.
a what requires phosphorus and nitrogen to grow
[ "Species", "plant", "seeds", "mussels", "food", "cells", "mold", "Oak" ]
plant
Answer the following multiple-choice question. Question: a what requires phosphorus and nitrogen to grow Options: A. Species B. plant C. seeds D. mussels E. food F. cells G. mold H. Oak Which option is correct and why?
The correct answer is: plant.
What happens to your leg when muscle fibers shorten?
[ "they bend", "It decreases", "It straightens", "permineralization", "It expands", "Damages them", "Localized damage", "Dehydration" ]
It straightens
Answer the following multiple-choice question. Question: What happens to your leg when muscle fibers shorten? Options: A. they bend B. It decreases C. It straightens D. permineralization E. It expands F. Damages them G. Localized damage H. Dehydration Which option is correct and why?
The correct answer is: It straightens.
Smaller sized galaxies are known as what?
[ "black holes", "nebula", "constellations", "dwarf galaxies" ]
dwarf galaxies
Answer the following multiple-choice question. Question: Smaller sized galaxies are known as what? Options: A. black holes B. nebula C. constellations D. dwarf galaxies Which option is correct and why?
The correct answer is: dwarf galaxies.
What is continually released during childbirth through a positive feedback mechanism and prompts uterine contractions to fetal head toward the cervix?
[ "oxytocin", "insulin", "hemoglobin", "vasopressin" ]
oxytocin
Answer the following multiple-choice question. Question: What is continually released during childbirth through a positive feedback mechanism and prompts uterine contractions to fetal head toward the cervix? Options: A. oxytocin B. insulin C. hemoglobin D. vasopressin Which option is correct and why?
The correct answer is: oxytocin.
animal what is sophisticated
[ "exoskeleton", "four limbs", "communication", "nervous system", "hormones", "in the frog family", "proteins", "circulatory systems" ]
communication
Answer the following multiple-choice question. Question: animal what is sophisticated Options: A. exoskeleton B. four limbs C. communication D. nervous system E. hormones F. in the frog family G. proteins H. circulatory systems Which option is correct and why?
The correct answer is: communication.
Difficult things to classify are what?
[ "frontal zones", "Pollution", "not cells", "Allergies", "bacteria", "Leptospirosis", "rays or beams", "Pesticides" ]
not cells
Answer the following multiple-choice question. Question: Difficult things to classify are what? Options: A. frontal zones B. Pollution C. not cells D. Allergies E. bacteria F. Leptospirosis G. rays or beams H. Pesticides Which option is correct and why?
The correct answer is: not cells.
Where can peat, buried under soil and mud and through extreme heat and pressure, change into coal?
[ "coastlines", "alluvial", "Sediment", "uncontrolled", "germany", "wetlands", "wind", "deltas" ]
wetlands
Answer the following multiple-choice question. Question: Where can peat, buried under soil and mud and through extreme heat and pressure, change into coal? Options: A. coastlines B. alluvial C. Sediment D. uncontrolled E. germany F. wetlands G. wind H. deltas Which option is correct and why?
The correct answer is: wetlands.
Ocean water appears cyan because microbes in the water preferentially absorb what color of light?
[ "green", "red", "blue", "yellow" ]
red
Answer the following multiple-choice question. Question: Ocean water appears cyan because microbes in the water preferentially absorb what color of light? Options: A. green B. red C. blue D. yellow Which option is correct and why?
The correct answer is: red.
What is common in muscles that have become exhausted by use?
[ "Blood Acid Fermentation", "clumps acid fermentation", "lactic acid fermentation", "vibration acid fermentation" ]
lactic acid fermentation
Answer the following multiple-choice question. Question: What is common in muscles that have become exhausted by use? Options: A. Blood Acid Fermentation B. clumps acid fermentation C. lactic acid fermentation D. vibration acid fermentation Which option is correct and why?
The correct answer is: lactic acid fermentation.
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How can bacterial stis usually be cured?
[ "with antibiotics", "antivirals", "tylenol", "antiinflammatories" ]
with antibiotics
Answer the following multiple-choice question. Question: How can bacterial stis usually be cured? Options: A. with antibiotics B. antivirals C. tylenol D. antiinflammatories Which option is correct and why?
The correct answer is: with antibiotics.
What is the term for animals that have a backbone?
[ "herbivores", "carnivores", "vertebrates", "invertebrates" ]
vertebrates
Answer the following multiple-choice question. Question: What is the term for animals that have a backbone? Options: A. herbivores B. carnivores C. vertebrates D. invertebrates Which option is correct and why?
The correct answer is: vertebrates.
What functions without contact between objects?
[ "weight", "friction", "opposites attracting", "pressure" ]
opposites attracting
Answer the following multiple-choice question. Question: What functions without contact between objects? Options: A. weight B. friction C. opposites attracting D. pressure Which option is correct and why?
The correct answer is: opposites attracting.
What is common in the southwestern portion of the subsection?
[ "permineralization", "deuterostomes", "barrel-shaped", "cactuses", "swamp vegetation", "peachleaf willow", "precipitation", "gene flow" ]
precipitation
Answer the following multiple-choice question. Question: What is common in the southwestern portion of the subsection? Options: A. permineralization B. deuterostomes C. barrel-shaped D. cactuses E. swamp vegetation F. peachleaf willow G. precipitation H. gene flow Which option is correct and why?
The correct answer is: precipitation.
A venule is an extremely small vein, generally 8–100 micrometers in diameter. postcapillary venules join multiple capillaries exiting from a capillary bed. multiple venules join to form what?
[ "clots", "veins", "glands", "arteries" ]
veins
Answer the following multiple-choice question. Question: A venule is an extremely small vein, generally 8–100 micrometers in diameter. postcapillary venules join multiple capillaries exiting from a capillary bed. multiple venules join to form what? Options: A. clots B. veins C. glands D. arteries Which option is correct and why?
The correct answer is: veins.
When fish travel in the opposite direction of flow they are going to
[ "spawn", "party", "site see", "start over" ]
spawn
Answer the following multiple-choice question. Question: When fish travel in the opposite direction of flow they are going to Options: A. spawn B. party C. site see D. start over Which option is correct and why?
The correct answer is: spawn.
What is the use of organisms preserved in sedimentary rock?
[ "clothing", "water", "food", "fuel" ]
fuel
Answer the following multiple-choice question. Question: What is the use of organisms preserved in sedimentary rock? Options: A. clothing B. water C. food D. fuel Which option is correct and why?
The correct answer is: fuel.
What is the hinged structure attached to the cranium that allows an animal to grasp and tear its food?
[ "throat", "neck", "tooth", "jaw" ]
jaw
Answer the following multiple-choice question. Question: What is the hinged structure attached to the cranium that allows an animal to grasp and tear its food? Options: A. throat B. neck C. tooth D. jaw Which option is correct and why?
The correct answer is: jaw.
Biomolecules are made in where?
[ "Power plants", "ribosomes", "Earth", "body water", "loose dirt", "ocean water", "environment", "loose soil" ]
ribosomes
Answer the following multiple-choice question. Question: Biomolecules are made in where? Options: A. Power plants B. ribosomes C. Earth D. body water E. loose dirt F. ocean water G. environment H. loose soil Which option is correct and why?
The correct answer is: ribosomes.
What type of behaviors do not have to be learned or practiced?
[ "innate behaviors", "acquired behaviors", "diverse behaviors", "protective behaviors" ]
innate behaviors
Answer the following multiple-choice question. Question: What type of behaviors do not have to be learned or practiced? Options: A. innate behaviors B. acquired behaviors C. diverse behaviors D. protective behaviors Which option is correct and why?
The correct answer is: innate behaviors.
a byproduct of an open flame is
[ "cooking", "warmth", "cold", "light" ]
warmth
Answer the following multiple-choice question. Question: a byproduct of an open flame is Options: A. cooking B. warmth C. cold D. light Which option is correct and why?
The correct answer is: warmth.
What often relies on cooperation between the motor and autonomic nervous systems?
[ "homeostasis", "hypothalamus", "thermoregulation", "ketosis" ]
homeostasis
Answer the following multiple-choice question. Question: What often relies on cooperation between the motor and autonomic nervous systems? Options: A. homeostasis B. hypothalamus C. thermoregulation D. ketosis Which option is correct and why?
The correct answer is: homeostasis.
What are used to write nuclear equations for radioactive decay?
[ "trigonometric symbols", "radioactive symbols", "nuclear symbols", "critical symbols" ]
nuclear symbols
Answer the following multiple-choice question. Question: What are used to write nuclear equations for radioactive decay? Options: A. trigonometric symbols B. radioactive symbols C. nuclear symbols D. critical symbols Which option is correct and why?
The correct answer is: nuclear symbols.
What term is used to describe is the increased or decreased speed of movement of an organism in response to a stimulus?
[ "telekinesis", "orthokinesis", "brownian motion", "klinokinesis" ]
orthokinesis
Answer the following multiple-choice question. Question: What term is used to describe is the increased or decreased speed of movement of an organism in response to a stimulus? Options: A. telekinesis B. orthokinesis C. brownian motion D. klinokinesis Which option is correct and why?
The correct answer is: orthokinesis.