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When is coal burning _ is given off
[ "CO 2", "energy", "vaporization", "SO2", "pollution", "oxygen", "carbon", "smoke" ]
CO 2
Answer the following multiple-choice question. Question: When is coal burning _ is given off Options: A. CO 2 B. energy C. vaporization D. SO2 E. pollution F. oxygen G. carbon H. smoke Which option is correct and why?
The correct answer is: CO 2.
What is a germ cell that divides into gametocytes during gametogenesis?
[ "cocklebur", "gonads", "gametogonium", "pollenation" ]
gametogonium
Answer the following multiple-choice question. Question: What is a germ cell that divides into gametocytes during gametogenesis? Options: A. cocklebur B. gonads C. gametogonium D. pollenation Which option is correct and why?
The correct answer is: gametogonium.
What animal uses gills to breathe?
[ "Shark", "Platypus", "salmon", "trout", "Whale", "mussels", "Crow", "a fish" ]
Shark
Answer the following multiple-choice question. Question: What animal uses gills to breathe? Options: A. Shark B. Platypus C. salmon D. trout E. Whale F. mussels G. Crow H. a fish Which option is correct and why?
The correct answer is: Shark.
What can attract copper?
[ "photons", "colors", "Energy.", "magnetism", "flowers", "hormones", "Light", "electrically" ]
magnetism
Answer the following multiple-choice question. Question: What can attract copper? Options: A. photons B. colors C. Energy. D. magnetism E. flowers F. hormones G. Light H. electrically Which option is correct and why?
The correct answer is: magnetism.
Plants have a life cycle which includes both sexual reproduction and what?
[ "converting electricity to heat", "arranged marriage", "asexual reproduction", "rapid expansion", "biological diversity", "singular", "babies", "produce offspring" ]
asexual reproduction
Answer the following multiple-choice question. Question: Plants have a life cycle which includes both sexual reproduction and what? Options: A. converting electricity to heat B. arranged marriage C. asexual reproduction D. rapid expansion E. biological diversity F. singular G. babies H. produce offspring Which option is correct and why?
The correct answer is: asexual reproduction.
Two bears, one weighing 200 pounds and another weighing 150 pounds are about to enter winter. The bear with the most weight will be
[ "better able to fly", "more likely to starve", "better suited to survive", "more likely to hurt" ]
better suited to survive
Answer the following multiple-choice question. Question: Two bears, one weighing 200 pounds and another weighing 150 pounds are about to enter winter. The bear with the most weight will be Options: A. better able to fly B. more likely to starve C. better suited to survive D. more likely to hurt Which option is correct and why?
The correct answer is: better suited to survive.
What does crop rotation renew?
[ "plants", "loans", "loam", "water" ]
loam
Answer the following multiple-choice question. Question: What does crop rotation renew? Options: A. plants B. loans C. loam D. water Which option is correct and why?
The correct answer is: loam.
What can be formed by mechanical weathering?
[ "NaCl", "white", "rock", "tube", "soils", "Roads", "Lakes", "sand" ]
Lakes
Answer the following multiple-choice question. Question: What can be formed by mechanical weathering? Options: A. NaCl B. white C. rock D. tube E. soils F. Roads G. Lakes H. sand Which option is correct and why?
The correct answer is: Lakes.
what have motility?
[ "insects", "gravity", "animals", "fungi", "mass", "amoebae", "parasites", "density" ]
amoebae
Answer the following multiple-choice question. Question: what have motility? Options: A. insects B. gravity C. animals D. fungi E. mass F. amoebae G. parasites H. density Which option is correct and why?
The correct answer is: amoebae.
what have complex behaviors?
[ "otters", "atoms", "ants", "Wasps", "volume", "h2o", "Birds", "cats" ]
ants
Answer the following multiple-choice question. Question: what have complex behaviors? Options: A. otters B. atoms C. ants D. Wasps E. volume F. h2o G. Birds H. cats Which option is correct and why?
The correct answer is: ants.
If a quantity of a reactant remains unconsumed after complete reaction has occurred, it is?
[ "in excess", "reduced", "static", "missing" ]
in excess
Answer the following multiple-choice question. Question: If a quantity of a reactant remains unconsumed after complete reaction has occurred, it is? Options: A. in excess B. reduced C. static D. missing Which option is correct and why?
The correct answer is: in excess.
Meiosis is a type of what that can produce sperm?
[ "cell division", "bending light rays", "complex cells", "Plant reproduction", "permineralization", "eggs", "babies", "Most plants" ]
cell division
Answer the following multiple-choice question. Question: Meiosis is a type of what that can produce sperm? Options: A. cell division B. bending light rays C. complex cells D. Plant reproduction E. permineralization F. eggs G. babies H. Most plants Which option is correct and why?
The correct answer is: cell division.
The first tetrapods were
[ "major threat to health", "remains of prehistoric life", "in the frog family", "running and lifting", "competing for resources", "warm-blooded", "objects that have mass", "graptolites" ]
in the frog family
Answer the following multiple-choice question. Question: The first tetrapods were Options: A. major threat to health B. remains of prehistoric life C. in the frog family D. running and lifting E. competing for resources F. warm-blooded G. objects that have mass H. graptolites Which option is correct and why?
The correct answer is: in the frog family.
What falls roughly in the middle of the electromagnetic spectrum, having shorter wavelengths and higher frequencies than microwaves, but not as short and high as x rays?
[ "ultraviolet light", "light", "gamma rays", "radio waves" ]
light
Answer the following multiple-choice question. Question: What falls roughly in the middle of the electromagnetic spectrum, having shorter wavelengths and higher frequencies than microwaves, but not as short and high as x rays? Options: A. ultraviolet light B. light C. gamma rays D. radio waves Which option is correct and why?
The correct answer is: light.
Vitamin D heals what?
[ "vision", "human frame", "sadness", "brain damage" ]
human frame
Answer the following multiple-choice question. Question: Vitamin D heals what? Options: A. vision B. human frame C. sadness D. brain damage Which option is correct and why?
The correct answer is: human frame.
What is blood heavy with?
[ "Carbon monoxide", "Energy.", "Bacteria", "Chemical energy", "matter vibrating", "Carbon dioxide", "Veins and arteries.", "Water" ]
Carbon dioxide
Answer the following multiple-choice question. Question: What is blood heavy with? Options: A. Carbon monoxide B. Energy. C. Bacteria D. Chemical energy E. matter vibrating F. Carbon dioxide G. Veins and arteries. H. Water Which option is correct and why?
The correct answer is: Carbon dioxide.
What does bone provide protection for in humans?
[ "epidermal", "during the day", "fur and fat", "health", "layers of fat", "staying warm", "The heart.", "When it's cold" ]
The heart.
Answer the following multiple-choice question. Question: What does bone provide protection for in humans? Options: A. epidermal B. during the day C. fur and fat D. health E. layers of fat F. staying warm G. The heart. H. When it's cold Which option is correct and why?
The correct answer is: The heart..
What can the movement of tectonic plates do?
[ "to move people", "threatened", "Destroy cities", "Prevent shaking", "Create people", "Build bridges", "erosion", "Movement" ]
Destroy cities
Answer the following multiple-choice question. Question: What can the movement of tectonic plates do? Options: A. to move people B. threatened C. Destroy cities D. Prevent shaking E. Create people F. Build bridges G. erosion H. Movement Which option is correct and why?
The correct answer is: Destroy cities.
What do fungi absorb to get their nutrition?
[ "soil", "water", "air", "organic compounds from other organisms" ]
organic compounds from other organisms
Answer the following multiple-choice question. Question: What do fungi absorb to get their nutrition? Options: A. soil B. water C. air D. organic compounds from other organisms Which option is correct and why?
The correct answer is: organic compounds from other organisms.
what are social?
[ "mammals", "termites", "bees", "ducks", "humans", "animals", "fur seals", "elephants" ]
termites
Answer the following multiple-choice question. Question: what are social? Options: A. mammals B. termites C. bees D. ducks E. humans F. animals G. fur seals H. elephants Which option is correct and why?
The correct answer is: termites.
Fractures, osteoarthritis, and rickets are problems of which body system?
[ "skeletal system", "circulatory system", "cardiovascular system", "digestive system" ]
skeletal system
Answer the following multiple-choice question. Question: Fractures, osteoarthritis, and rickets are problems of which body system? Options: A. skeletal system B. circulatory system C. cardiovascular system D. digestive system Which option is correct and why?
The correct answer is: skeletal system.
What happens to most of the energy in a trophic level as it passes to the next higher level?
[ "it is lost", "it is transferred", "it stays the same", "it increases" ]
it is lost
Answer the following multiple-choice question. Question: What happens to most of the energy in a trophic level as it passes to the next higher level? Options: A. it is lost B. it is transferred C. it stays the same D. it increases Which option is correct and why?
The correct answer is: it is lost.
The boiling points of liquid also correlate to the strength of which forces?
[ "centrifugal", "gravitational", "supramolecular", "intermolecular" ]
intermolecular
Answer the following multiple-choice question. Question: The boiling points of liquid also correlate to the strength of which forces? Options: A. centrifugal B. gravitational C. supramolecular D. intermolecular Which option is correct and why?
The correct answer is: intermolecular.
An electric car requires what to operate?
[ "radiation shielding", "hydrogen and oxygen", "electromagnetic energy", "gasoline", "direct energy", "heat energy", "a closed circuit", "oxygen" ]
a closed circuit
Answer the following multiple-choice question. Question: An electric car requires what to operate? Options: A. radiation shielding B. hydrogen and oxygen C. electromagnetic energy D. gasoline E. direct energy F. heat energy G. a closed circuit H. oxygen Which option is correct and why?
The correct answer is: a closed circuit.
What type of numbers specify the arrangement of electrons in orbitals?
[ "ionic numbers", "quantum numbers", "stream numbers", "fusion numbers" ]
quantum numbers
Answer the following multiple-choice question. Question: What type of numbers specify the arrangement of electrons in orbitals? Options: A. ionic numbers B. quantum numbers C. stream numbers D. fusion numbers Which option is correct and why?
The correct answer is: quantum numbers.
Which of the following can help reduce global warming?
[ "Lowering gas mileage in cars", "reducing public transportation", "evaporative cooling", "reusing materials", "Electrical energy", "biological diversity", "Burning biofuels", "Adoption of geothermal energy" ]
Adoption of geothermal energy
Answer the following multiple-choice question. Question: Which of the following can help reduce global warming? Options: A. Lowering gas mileage in cars B. reducing public transportation C. evaporative cooling D. reusing materials E. Electrical energy F. biological diversity G. Burning biofuels H. Adoption of geothermal energy Which option is correct and why?
The correct answer is: Adoption of geothermal energy.
Sea hares are poisonous slugs, with tiny bunny-like tentacles, that float in water currents and ocean waves. They squirt a purple colored chemical that's sticky and smelly
[ "to attract a mate", "to swim in deep waters", "to ward off predators", "to color the water" ]
to ward off predators
Answer the following multiple-choice question. Question: Sea hares are poisonous slugs, with tiny bunny-like tentacles, that float in water currents and ocean waves. They squirt a purple colored chemical that's sticky and smelly Options: A. to attract a mate B. to swim in deep waters C. to ward off predators D. to color the water Which option is correct and why?
The correct answer is: to ward off predators.
Organisms that depend on other organisms for food play what role in the food chain?
[ "fungus", "producer", "consumer", "plant" ]
consumer
Answer the following multiple-choice question. Question: Organisms that depend on other organisms for food play what role in the food chain? Options: A. fungus B. producer C. consumer D. plant Which option is correct and why?
The correct answer is: consumer.
What requires energy for growth?
[ "a car", "a hippopotamus", "a house", "a desk" ]
a hippopotamus
Answer the following multiple-choice question. Question: What requires energy for growth? Options: A. a car B. a hippopotamus C. a house D. a desk Which option is correct and why?
The correct answer is: a hippopotamus.
How many quarks are in each proton and neutron?
[ "three", "four", "ten", "five" ]
three
Answer the following multiple-choice question. Question: How many quarks are in each proton and neutron? Options: A. three B. four C. ten D. five Which option is correct and why?
The correct answer is: three.
What are the names of foul-smelling amines, formed as a part of the decay process after death?
[ "sulfur and formaldehyde", "formaldehyde and cadaverine", "cadaverine and putrescine", "methane and sulfur" ]
cadaverine and putrescine
Answer the following multiple-choice question. Question: What are the names of foul-smelling amines, formed as a part of the decay process after death? Options: A. sulfur and formaldehyde B. formaldehyde and cadaverine C. cadaverine and putrescine D. methane and sulfur Which option is correct and why?
The correct answer is: cadaverine and putrescine.
What is the name of the hollow nerve cord along the back of chordates?
[ "phloem", "zetacord", "mesoderm", "notochord" ]
notochord
Answer the following multiple-choice question. Question: What is the name of the hollow nerve cord along the back of chordates? Options: A. phloem B. zetacord C. mesoderm D. notochord Which option is correct and why?
The correct answer is: notochord.
What happens when food is stored below 40 degrees?
[ "Decrease bodily water", "It gets cooked quicker", "It stays fresh", "Dehydration", "sweating", "They may not survive.", "It's not as safe to eat", "It gets eaten quicker" ]
It stays fresh
Answer the following multiple-choice question. Question: What happens when food is stored below 40 degrees? Options: A. Decrease bodily water B. It gets cooked quicker C. It stays fresh D. Dehydration E. sweating F. They may not survive. G. It's not as safe to eat H. It gets eaten quicker Which option is correct and why?
The correct answer is: It stays fresh.
What is the distinctive shape of the molecule that contains genetic information?
[ "cylindrical", "spiral", "conical", "cube" ]
spiral
Answer the following multiple-choice question. Question: What is the distinctive shape of the molecule that contains genetic information? Options: A. cylindrical B. spiral C. conical D. cube Which option is correct and why?
The correct answer is: spiral.
How is coal made?
[ "Being exposed to air", "to move people", "Converting waste.", "heat is produced", "It gets heated up", "Being buried under ground", "By hand", "In a factory" ]
Being buried under ground
Answer the following multiple-choice question. Question: How is coal made? Options: A. Being exposed to air B. to move people C. Converting waste. D. heat is produced E. It gets heated up F. Being buried under ground G. By hand H. In a factory Which option is correct and why?
The correct answer is: Being buried under ground.
What is measured by the intensity of the sound waves?
[ "tone", "loudness", "inputs", "pitch" ]
loudness
Answer the following multiple-choice question. Question: What is measured by the intensity of the sound waves? Options: A. tone B. loudness C. inputs D. pitch Which option is correct and why?
The correct answer is: loudness.
Is the rate of population growth increasing or decreasing?
[ "increasing", "preventing", "Vanishing.", "suggesting" ]
increasing
Answer the following multiple-choice question. Question: Is the rate of population growth increasing or decreasing? Options: A. increasing B. preventing C. Vanishing. D. suggesting Which option is correct and why?
The correct answer is: increasing.
In which way do vertebrates reproduce?
[ "asexually", "unisexually", "sexually", "bisexually" ]
sexually
Answer the following multiple-choice question. Question: In which way do vertebrates reproduce? Options: A. asexually B. unisexually C. sexually D. bisexually Which option is correct and why?
The correct answer is: sexually.
which one of these would be a migratory outcome?
[ "animals feeling more comfortable being outside", "animals getting more sick", "animals getting more aggressive", "animals dying from sub-zero weather" ]
animals feeling more comfortable being outside
Answer the following multiple-choice question. Question: which one of these would be a migratory outcome? Options: A. animals feeling more comfortable being outside B. animals getting more sick C. animals getting more aggressive D. animals dying from sub-zero weather Which option is correct and why?
The correct answer is: animals feeling more comfortable being outside.
What do microbial fuel cells transform hydrogen into?
[ "Renewable energy", "Electrical energy", "kinetic energy", "electromagnetic energy", "an engine", "transportation technology", "Solar energy", "Oil" ]
Electrical energy
Answer the following multiple-choice question. Question: What do microbial fuel cells transform hydrogen into? Options: A. Renewable energy B. Electrical energy C. kinetic energy D. electromagnetic energy E. an engine F. transportation technology G. Solar energy H. Oil Which option is correct and why?
The correct answer is: Electrical energy.
The nucleolus, which makes ribosomes, is located within what cell structure?
[ "nucleus", "mitochondria", "Golgi apparatus", "epidermis" ]
nucleus
Answer the following multiple-choice question. Question: The nucleolus, which makes ribosomes, is located within what cell structure? Options: A. nucleus B. mitochondria C. Golgi apparatus D. epidermis Which option is correct and why?
The correct answer is: nucleus.
What color is neptune?
[ "yellow", "white", "pink", "blue" ]
blue
Answer the following multiple-choice question. Question: What color is neptune? Options: A. yellow B. white C. pink D. blue Which option is correct and why?
The correct answer is: blue.
What is another name for collar cells?
[ "enzymes", "choanocytes", "sporozoans", "clutches" ]
choanocytes
Answer the following multiple-choice question. Question: What is another name for collar cells? Options: A. enzymes B. choanocytes C. sporozoans D. clutches Which option is correct and why?
The correct answer is: choanocytes.
what contributes to soils?
[ "roundworms", "humans", "rainfall", "cacti", "bacteria", "weathering", "viruses", "Most plants" ]
roundworms
Answer the following multiple-choice question. Question: what contributes to soils? Options: A. roundworms B. humans C. rainfall D. cacti E. bacteria F. weathering G. viruses H. Most plants Which option is correct and why?
The correct answer is: roundworms.
Most soft-bodied invertebrates have what?
[ "hands", "epidermal", "protected", "a cuticle", "hard", "alveoli", "shells", "exterior" ]
shells
Answer the following multiple-choice question. Question: Most soft-bodied invertebrates have what? Options: A. hands B. epidermal C. protected D. a cuticle E. hard F. alveoli G. shells H. exterior Which option is correct and why?
The correct answer is: shells.
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What structures of the cardiovascular system help regulate body processes by either constricting or dilating?
[ "muscles", "capillaries", "cartilage", "blood vessels" ]
blood vessels
Answer the following multiple-choice question. Question: What structures of the cardiovascular system help regulate body processes by either constricting or dilating? Options: A. muscles B. capillaries C. cartilage D. blood vessels Which option is correct and why?
The correct answer is: blood vessels.
The two smallest carboxylic acids are formic acid and what else?
[ "ethylene acid", "acetic acid", "carbonates acid", "ascorbic acid" ]
acetic acid
Answer the following multiple-choice question. Question: The two smallest carboxylic acids are formic acid and what else? Options: A. ethylene acid B. acetic acid C. carbonates acid D. ascorbic acid Which option is correct and why?
The correct answer is: acetic acid.
All animals that derive energy from food are classified as what?
[ "paleotrophs", "lifeforms", "heliotrophs", "heterotrophs" ]
heterotrophs
Answer the following multiple-choice question. Question: All animals that derive energy from food are classified as what? Options: A. paleotrophs B. lifeforms C. heliotrophs D. heterotrophs Which option is correct and why?
The correct answer is: heterotrophs.
The part of the shadow in which light is completely blocked is called what?
[ "penumbra", "eclipse", "umbra", "corona" ]
umbra
Answer the following multiple-choice question. Question: The part of the shadow in which light is completely blocked is called what? Options: A. penumbra B. eclipse C. umbra D. corona Which option is correct and why?
The correct answer is: umbra.
How does coal produce electricity?
[ "It remains dormant", "It gets cooled", "By rubbing together", "chemical reaction", "It gets heated up", "major threat to health", "Through magnetism", "heat energy" ]
It gets heated up
Answer the following multiple-choice question. Question: How does coal produce electricity? Options: A. It remains dormant B. It gets cooled C. By rubbing together D. chemical reaction E. It gets heated up F. major threat to health G. Through magnetism H. heat energy Which option is correct and why?
The correct answer is: It gets heated up.
What may cause mammals to leave an enviroment?
[ "contamination", "adequate shelter", "lack of predators", "influenza", "Pollution", "deforestation", "natural disasters", "an abundance of food" ]
natural disasters
Answer the following multiple-choice question. Question: What may cause mammals to leave an enviroment? Options: A. contamination B. adequate shelter C. lack of predators D. influenza E. Pollution F. deforestation G. natural disasters H. an abundance of food Which option is correct and why?
The correct answer is: natural disasters.
Hummingbirds gather nectar using their
[ "bills", "wings", "hands", "feet" ]
bills
Answer the following multiple-choice question. Question: Hummingbirds gather nectar using their Options: A. bills B. wings C. hands D. feet Which option is correct and why?
The correct answer is: bills.
Each enzyme has an optimal what at which its reaction rate is greatest?
[ "weight", "temperature", "precipitation", "size" ]
temperature
Answer the following multiple-choice question. Question: Each enzyme has an optimal what at which its reaction rate is greatest? Options: A. weight B. temperature C. precipitation D. size Which option is correct and why?
The correct answer is: temperature.
What disrupts organisms and the atmosphere?
[ "fog", "Sulfur dioxide", "light rain", "fossil fuels", "Pesticides", "water vapor", "burning coal", "deforestation" ]
deforestation
Answer the following multiple-choice question. Question: What disrupts organisms and the atmosphere? Options: A. fog B. Sulfur dioxide C. light rain D. fossil fuels E. Pesticides F. water vapor G. burning coal H. deforestation Which option is correct and why?
The correct answer is: deforestation.
When sugar is added to water, it blends in such as in which drink?
[ "milk", "lemonade", "juice", "tea" ]
lemonade
Answer the following multiple-choice question. Question: When sugar is added to water, it blends in such as in which drink? Options: A. milk B. lemonade C. juice D. tea Which option is correct and why?
The correct answer is: lemonade.
An alien creature is found on earth. Researchers discover that it will eat worms, insects and small rodents, but shuns bananas, leaves and cucumbers. Which of these could be true?
[ "the creature is a carnivore", "the creature is a vegan", "the creature is something other than an omnivore", "the creature loves to eat cucumbers" ]
the creature is a carnivore
Answer the following multiple-choice question. Question: An alien creature is found on earth. Researchers discover that it will eat worms, insects and small rodents, but shuns bananas, leaves and cucumbers. Which of these could be true? Options: A. the creature is a carnivore B. the creature is a vegan C. the creature is something other than an omnivore D. the creature loves to eat cucumbers Which option is correct and why?
The correct answer is: the creature is a carnivore.
Many european and asiatic elms are less susceptible to dutch elm disease than which elms?
[ "american", "rican", "african", "caribbean" ]
american
Answer the following multiple-choice question. Question: Many european and asiatic elms are less susceptible to dutch elm disease than which elms? Options: A. american B. rican C. african D. caribbean Which option is correct and why?
The correct answer is: american.
On the origin of species is a book by darwin that spells out what theory?
[ "theory of evolution", "theory of the universe", "theory of reproduction", "theory of the computation" ]
theory of evolution
Answer the following multiple-choice question. Question: On the origin of species is a book by darwin that spells out what theory? Options: A. theory of evolution B. theory of the universe C. theory of reproduction D. theory of the computation Which option is correct and why?
The correct answer is: theory of evolution.
Plants face two types of enemies: herbivores and what else?
[ "erosion", "pathogens", "water", "carnivores" ]
pathogens
Answer the following multiple-choice question. Question: Plants face two types of enemies: herbivores and what else? Options: A. erosion B. pathogens C. water D. carnivores Which option is correct and why?
The correct answer is: pathogens.
Kinetic energy of moving particles of matter, measured by their temperatures are known as:
[ "atmospheric energy", "visible energy", "solar energy", "thermal energy" ]
thermal energy
Answer the following multiple-choice question. Question: Kinetic energy of moving particles of matter, measured by their temperatures are known as: Options: A. atmospheric energy B. visible energy C. solar energy D. thermal energy Which option is correct and why?
The correct answer is: thermal energy.
The energy of a photon is directly proportional to the frequency of the electromagnetic what?
[ "convection", "absorption", "evaporation", "radiation" ]
radiation
Answer the following multiple-choice question. Question: The energy of a photon is directly proportional to the frequency of the electromagnetic what? Options: A. convection B. absorption C. evaporation D. radiation Which option is correct and why?
The correct answer is: radiation.
Fatty acids, triglycerides, phospholipids, and steroids are examples of what?
[ "proteins", "lipids", "enzymes", "tissues" ]
lipids
Answer the following multiple-choice question. Question: Fatty acids, triglycerides, phospholipids, and steroids are examples of what? Options: A. proteins B. lipids C. enzymes D. tissues Which option is correct and why?
The correct answer is: lipids.
What number is the sum of the numbers of protons and neutrons present in the nucleus of an atom?
[ "combined number", "mass total", "mass number", "nuclear number" ]
mass number
Answer the following multiple-choice question. Question: What number is the sum of the numbers of protons and neutrons present in the nucleus of an atom? Options: A. combined number B. mass total C. mass number D. nuclear number Which option is correct and why?
The correct answer is: mass number.
What are the specialized cells of sponges called?
[ "plant cells", "t cells", "helper cells", "collar cells" ]
collar cells
Answer the following multiple-choice question. Question: What are the specialized cells of sponges called? Options: A. plant cells B. t cells C. helper cells D. collar cells Which option is correct and why?
The correct answer is: collar cells.
Where would an archaeologist likely find an impression of an ancient footprint?
[ "lying on the beach", "under layers of dirt", "on the surface of the moon", "buried in a graveyard" ]
under layers of dirt
Answer the following multiple-choice question. Question: Where would an archaeologist likely find an impression of an ancient footprint? Options: A. lying on the beach B. under layers of dirt C. on the surface of the moon D. buried in a graveyard Which option is correct and why?
The correct answer is: under layers of dirt.
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What from one species to another occurs over geologic time?
[ "Energy", "science", "means", "change", "fusion", "movement", "pollen", "time" ]
change
Answer the following multiple-choice question. Question: What from one species to another occurs over geologic time? Options: A. Energy B. science C. means D. change E. fusion F. movement G. pollen H. time Which option is correct and why?
The correct answer is: change.
Besides greenland, where are the earth's largest ice sheets found?
[ "Asia", "Europe", "North America", "antarctica" ]
antarctica
Answer the following multiple-choice question. Question: Besides greenland, where are the earth's largest ice sheets found? Options: A. Asia B. Europe C. North America D. antarctica Which option is correct and why?
The correct answer is: antarctica.
What causes the westerlies?
[ "flow of electrons", "Ocean currents", "Precipitation", "to move people", "Drought", "scattered light", "Uneven heating by the sun", "exposure to cold" ]
Uneven heating by the sun
Answer the following multiple-choice question. Question: What causes the westerlies? Options: A. flow of electrons B. Ocean currents C. Precipitation D. to move people E. Drought F. scattered light G. Uneven heating by the sun H. exposure to cold Which option is correct and why?
The correct answer is: Uneven heating by the sun.
Name the physicist who discovered radioactivity?
[ "louis pasteur", "albert einstein", "neal degrasse tyson", "antoine henri becquerel" ]
antoine henri becquerel
Answer the following multiple-choice question. Question: Name the physicist who discovered radioactivity? Options: A. louis pasteur B. albert einstein C. neal degrasse tyson D. antoine henri becquerel Which option is correct and why?
The correct answer is: antoine henri becquerel.
What do you call the first cell of a new organism?
[ "starter cell", "embryo", "zygote", "egg" ]
zygote
Answer the following multiple-choice question. Question: What do you call the first cell of a new organism? Options: A. starter cell B. embryo C. zygote D. egg Which option is correct and why?
The correct answer is: zygote.
what will expand when heated?
[ "arteries", "water vapor", "breathing", "viewing", "condensation", "a prism", "glass", "chlorine" ]
chlorine
Answer the following multiple-choice question. Question: what will expand when heated? Options: A. arteries B. water vapor C. breathing D. viewing E. condensation F. a prism G. glass H. chlorine Which option is correct and why?
The correct answer is: chlorine.
Jellyfish belong to which phylum?
[ "porifera", "analidae", "mycobacteria", "cnidaria" ]
cnidaria
Answer the following multiple-choice question. Question: Jellyfish belong to which phylum? Options: A. porifera B. analidae C. mycobacteria D. cnidaria Which option is correct and why?
The correct answer is: cnidaria.
What is required for life?
[ "dna", "RNA", "food", "money", "lead", "ovum", "ova", "gasoline" ]
dna
Answer the following multiple-choice question. Question: What is required for life? Options: A. dna B. RNA C. food D. money E. lead F. ovum G. ova H. gasoline Which option is correct and why?
The correct answer is: dna.
Why might wolves a new area where a lot of deer live?
[ "The wolves eat the same things that the deer eat", "They wanted to be friends with the deer.", "The wolves stay near the deer for protection", "The wolves use the deer for nutrition" ]
The wolves use the deer for nutrition
Answer the following multiple-choice question. Question: Why might wolves a new area where a lot of deer live? Options: A. The wolves eat the same things that the deer eat B. They wanted to be friends with the deer. C. The wolves stay near the deer for protection D. The wolves use the deer for nutrition Which option is correct and why?
The correct answer is: The wolves use the deer for nutrition.
Which action may be seen an action that benefits the environment
[ "redeeming aluminum cans", "burning trash", "hunting deer", "Building inground pool" ]
redeeming aluminum cans
Answer the following multiple-choice question. Question: Which action may be seen an action that benefits the environment Options: A. redeeming aluminum cans B. burning trash C. hunting deer D. Building inground pool Which option is correct and why?
The correct answer is: redeeming aluminum cans.
What slows down the transfer of heat?
[ "a wooden wall", "the wind", "the sun", "light rays" ]
a wooden wall
Answer the following multiple-choice question. Question: What slows down the transfer of heat? Options: A. a wooden wall B. the wind C. the sun D. light rays Which option is correct and why?
The correct answer is: a wooden wall.
What is when solids are heated and ions move freely?
[ "dissolving", "refreshing", "kinetic energy", "removing", "boiling", "barrel-shaped", "renewing", "unidirectional" ]
dissolving
Answer the following multiple-choice question. Question: What is when solids are heated and ions move freely? Options: A. dissolving B. refreshing C. kinetic energy D. removing E. boiling F. barrel-shaped G. renewing H. unidirectional Which option is correct and why?
The correct answer is: dissolving.
Viruses often infect something killed by what?
[ "Rocks", "Antibiotics", "radiation", "Needle", "Water", "Pesticides", "sun's heat", "Cooking" ]
Antibiotics
Answer the following multiple-choice question. Question: Viruses often infect something killed by what? Options: A. Rocks B. Antibiotics C. radiation D. Needle E. Water F. Pesticides G. sun's heat H. Cooking Which option is correct and why?
The correct answer is: Antibiotics.
What is light with wavelengths shorter than visible light called?
[ "radio waves", "ultraviolet light", "weathering light", "infrared light" ]
ultraviolet light
Answer the following multiple-choice question. Question: What is light with wavelengths shorter than visible light called? Options: A. radio waves B. ultraviolet light C. weathering light D. infrared light Which option is correct and why?
The correct answer is: ultraviolet light.
In mammals, hair or fur help conserve bodily what?
[ "food", "energy", "water", "heat" ]
heat
Answer the following multiple-choice question. Question: In mammals, hair or fur help conserve bodily what? Options: A. food B. energy C. water D. heat Which option is correct and why?
The correct answer is: heat.
Scientists use the principles of what to make predictions, which they then test?
[ "their teachers", "their guesses", "their faith", "their hypothesis" ]
their hypothesis
Answer the following multiple-choice question. Question: Scientists use the principles of what to make predictions, which they then test? Options: A. their teachers B. their guesses C. their faith D. their hypothesis Which option is correct and why?
The correct answer is: their hypothesis.
What does mechanical weathering do to a rock?
[ "move to different locations", "Causes it to crack", "Makes it shrink", "break off", "Regrows it", "decreases its bodily water", "Moves it", "Causes it to grow" ]
Causes it to crack
Answer the following multiple-choice question. Question: What does mechanical weathering do to a rock? Options: A. move to different locations B. Causes it to crack C. Makes it shrink D. break off E. Regrows it F. decreases its bodily water G. Moves it H. Causes it to grow Which option is correct and why?
The correct answer is: Causes it to crack.
What do you call resources that can be replaced at the rate they are being used?
[ "abundant", "innovative", "renewable", "viable" ]
renewable
Answer the following multiple-choice question. Question: What do you call resources that can be replaced at the rate they are being used? Options: A. abundant B. innovative C. renewable D. viable Which option is correct and why?
The correct answer is: renewable.
Rabies transmission occurs when saliva from an infected mammal enters a wound. the virus travels through neurons in the peripheral nervous system to the central nervous system where it impairs this?
[ "brain function", "lung function", "skeletal system", "reproduction system" ]
brain function
Answer the following multiple-choice question. Question: Rabies transmission occurs when saliva from an infected mammal enters a wound. the virus travels through neurons in the peripheral nervous system to the central nervous system where it impairs this? Options: A. brain function B. lung function C. skeletal system D. reproduction system Which option is correct and why?
The correct answer is: brain function.
what is used to heat a building?
[ "water", "iron", "coal", "fire", "gas", "CFCs", "oxygen", "oil" ]
oil
Answer the following multiple-choice question. Question: what is used to heat a building? Options: A. water B. iron C. coal D. fire E. gas F. CFCs G. oxygen H. oil Which option is correct and why?
The correct answer is: oil.
What rely on vision for long-distance orientation?
[ "alpacas", "mammals", "graptolites", "fur seals", "fur and fat", "insects", "most reptiles", "to move people" ]
most reptiles
Answer the following multiple-choice question. Question: What rely on vision for long-distance orientation? Options: A. alpacas B. mammals C. graptolites D. fur seals E. fur and fat F. insects G. most reptiles H. to move people Which option is correct and why?
The correct answer is: most reptiles.
What does sunlight create for plants?
[ "sugar", "food", "entropy", "sunbathing", "happiness", "survival", "energy", "growth" ]
energy
Answer the following multiple-choice question. Question: What does sunlight create for plants? Options: A. sugar B. food C. entropy D. sunbathing E. happiness F. survival G. energy H. growth Which option is correct and why?
The correct answer is: energy.
Is an acid lower or higher than 7 on the ph scale?
[ "higher than 7", "twice as much as 7", "exactly 7", "lower than 7" ]
lower than 7
Answer the following multiple-choice question. Question: Is an acid lower or higher than 7 on the ph scale? Options: A. higher than 7 B. twice as much as 7 C. exactly 7 D. lower than 7 Which option is correct and why?
The correct answer is: lower than 7.
Four times a year you will see a different
[ "climate", "person", "moon", "star" ]
climate
Answer the following multiple-choice question. Question: Four times a year you will see a different Options: A. climate B. person C. moon D. star Which option is correct and why?
The correct answer is: climate.
Ground has
[ "electricity", "divorce", "elements", "common understanding" ]
elements
Answer the following multiple-choice question. Question: Ground has Options: A. electricity B. divorce C. elements D. common understanding Which option is correct and why?
The correct answer is: elements.
growth in what is caused by primary and secondary meristems in roots?
[ "H 2 O", "bamboo", "population", "offspring", "bushes", "bulbs", "clouds", "size" ]
size
Answer the following multiple-choice question. Question: growth in what is caused by primary and secondary meristems in roots? Options: A. H 2 O B. bamboo C. population D. offspring E. bushes F. bulbs G. clouds H. size Which option is correct and why?
The correct answer is: size.
What in soil is vital for healthy roots?
[ "looseness", "nutrients", "leftovers", "compacted", "ferns", "cells", "energy", "trash" ]
looseness
Answer the following multiple-choice question. Question: What in soil is vital for healthy roots? Options: A. looseness B. nutrients C. leftovers D. compacted E. ferns F. cells G. energy H. trash Which option is correct and why?
The correct answer is: looseness.
What are the two types of cells?
[ "bacteria and eukaryotes", "animal and bacteria", "prokaryotes and eukaryotes", "mammal and plant" ]
prokaryotes and eukaryotes
Answer the following multiple-choice question. Question: What are the two types of cells? Options: A. bacteria and eukaryotes B. animal and bacteria C. prokaryotes and eukaryotes D. mammal and plant Which option is correct and why?
The correct answer is: prokaryotes and eukaryotes.
Tanning salons claim to use a “safe” form of what light, with a longer wavelength than that in sunlight?
[ "uv (ultraviolet)", "microwave", "X rays", "infrared" ]
uv (ultraviolet)
Answer the following multiple-choice question. Question: Tanning salons claim to use a “safe” form of what light, with a longer wavelength than that in sunlight? Options: A. uv (ultraviolet) B. microwave C. X rays D. infrared Which option is correct and why?
The correct answer is: uv (ultraviolet).
Fossil records show that what process may occur in "fits and starts"?
[ "evolution", "variation", "generation", "isolation" ]
evolution
Answer the following multiple-choice question. Question: Fossil records show that what process may occur in "fits and starts"? Options: A. evolution B. variation C. generation D. isolation Which option is correct and why?
The correct answer is: evolution.
Steam actually consists of tiny droplets of liquid what?
[ "water", "methane", "lead", "mercury" ]
water
Answer the following multiple-choice question. Question: Steam actually consists of tiny droplets of liquid what? Options: A. water B. methane C. lead D. mercury Which option is correct and why?
The correct answer is: water.
The two ovaries are small, oval organs on either side of what part of the body?
[ "lungs", "pancreas", "heart", "uterus" ]
uterus
Answer the following multiple-choice question. Question: The two ovaries are small, oval organs on either side of what part of the body? Options: A. lungs B. pancreas C. heart D. uterus Which option is correct and why?
The correct answer is: uterus.
What do birds secrete to attract a mate?
[ "Energy.", "Energy", "fur and fat", "seeds", "oxygen", "pollen", "Estrogen", "acetic acid" ]
Estrogen
Answer the following multiple-choice question. Question: What do birds secrete to attract a mate? Options: A. Energy. B. Energy C. fur and fat D. seeds E. oxygen F. pollen G. Estrogen H. acetic acid Which option is correct and why?
The correct answer is: Estrogen.