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Pneumonia may be caused by viruses or
[ "bacteria", "a hazard", "cold weather", "humidity", "mildew", "PDAs", "injury", "methane" ]
injury
Answer the following multiple-choice question. Question: Pneumonia may be caused by viruses or Options: A. bacteria B. a hazard C. cold weather D. humidity E. mildew F. PDAs G. injury H. methane Which option is correct and why?
The correct answer is: injury.
A
What can irradiation do?
[ "Plant growth is reduced", "make food glow", "make food unsafe", "harm consumers", "depress neuronal excitability", "extend the shelf life of food", "major threat to health", "prevent heat loss" ]
extend the shelf life of food
Answer the following multiple-choice question. Question: What can irradiation do? Options: A. Plant growth is reduced B. make food glow C. make food unsafe D. harm consumers E. depress neuronal excitability F. extend the shelf life of food G. major threat to health H. prevent heat loss Which option is correct and why?
The correct answer is: extend the shelf life of food.
A
In physics, resistance is opposition to the flow of what?
[ "surface flow", "temperature charges", "capacitance", "electrical charges" ]
electrical charges
Answer the following multiple-choice question. Question: In physics, resistance is opposition to the flow of what? Options: A. surface flow B. temperature charges C. capacitance D. electrical charges Which option is correct and why?
The correct answer is: electrical charges.
D
What structure is the site of all of the basic biochemical processes that keep organisms alive?
[ "Element", "cell", "particle", "Atom" ]
cell
Answer the following multiple-choice question. Question: What structure is the site of all of the basic biochemical processes that keep organisms alive? Options: A. Element B. cell C. particle D. Atom Which option is correct and why?
The correct answer is: cell.
B
What is a byproduct from the combustion of fossil fuels like coal and gasoline?
[ "alcohol", "nitrogen dioxide", "carbon monoxide", "aluminum oxide" ]
nitrogen dioxide
Answer the following multiple-choice question. Question: What is a byproduct from the combustion of fossil fuels like coal and gasoline? Options: A. alcohol B. nitrogen dioxide C. carbon monoxide D. aluminum oxide Which option is correct and why?
The correct answer is: nitrogen dioxide.
B
Feeling sweaty is normal on the ocean because
[ "the desert is drier", "the ocean is wet", "there is more moisture in the air", "the moisture is higher up" ]
there is more moisture in the air
Answer the following multiple-choice question. Question: Feeling sweaty is normal on the ocean because Options: A. the desert is drier B. the ocean is wet C. there is more moisture in the air D. the moisture is higher up Which option is correct and why?
The correct answer is: there is more moisture in the air.
C
The family cooked most of their food using a stove and
[ "electricity", "luck", "ice", "magic" ]
electricity
Answer the following multiple-choice question. Question: The family cooked most of their food using a stove and Options: A. electricity B. luck C. ice D. magic Which option is correct and why?
The correct answer is: electricity.
A
Acting like drawstrings to close off the alimentary canal, what regulates the passage of material between compartments?
[ "hamstring", "uterus", "sphincter", "intestine" ]
sphincter
Answer the following multiple-choice question. Question: Acting like drawstrings to close off the alimentary canal, what regulates the passage of material between compartments? Options: A. hamstring B. uterus C. sphincter D. intestine Which option is correct and why?
The correct answer is: sphincter.
C
What United States unit of measurement would be most comparable to a meter stick
[ "Mile Marker", "ruler", "Tape Measurer", "Yardstick" ]
Yardstick
Answer the following multiple-choice question. Question: What United States unit of measurement would be most comparable to a meter stick Options: A. Mile Marker B. ruler C. Tape Measurer D. Yardstick Which option is correct and why?
The correct answer is: Yardstick.
D
Viral and what disease can both be caused by injury of the lungs
[ "tongue", "the skin", "bacterial", "throat", "Pollution", "fungi", "smoking", "ribs" ]
bacterial
Answer the following multiple-choice question. Question: Viral and what disease can both be caused by injury of the lungs Options: A. tongue B. the skin C. bacterial D. throat E. Pollution F. fungi G. smoking H. ribs Which option is correct and why?
The correct answer is: bacterial.
C
What is the amorphous form of carbon prepared by the incomplete combustion of natural gas?
[ "dioxide black", "liquid black", "carbon black", "dark black" ]
carbon black
Answer the following multiple-choice question. Question: What is the amorphous form of carbon prepared by the incomplete combustion of natural gas? Options: A. dioxide black B. liquid black C. carbon black D. dark black Which option is correct and why?
The correct answer is: carbon black.
C
Birds build nests out of things such as
[ "fragments from plants", "small glass shards", "entire tree trunks", "several flower buds" ]
fragments from plants
Answer the following multiple-choice question. Question: Birds build nests out of things such as Options: A. fragments from plants B. small glass shards C. entire tree trunks D. several flower buds Which option is correct and why?
The correct answer is: fragments from plants.
A
What happens if a catalyst runs out?
[ "reaction slows", "reaction increases", "variety slows", "variety increases" ]
reaction slows
Answer the following multiple-choice question. Question: What happens if a catalyst runs out? Options: A. reaction slows B. reaction increases C. variety slows D. variety increases Which option is correct and why?
The correct answer is: reaction slows.
A
In humans, bacteria can help digest what?
[ "plastics", "nutriment", "copper", "stones" ]
nutriment
Answer the following multiple-choice question. Question: In humans, bacteria can help digest what? Options: A. plastics B. nutriment C. copper D. stones Which option is correct and why?
The correct answer is: nutriment.
B
Obligate anaerobes live and grow in the absence of what?
[ "molecular carbon", "molecular oxygen", "atomic oxygen", "molecular nitrogen" ]
molecular oxygen
Answer the following multiple-choice question. Question: Obligate anaerobes live and grow in the absence of what? Options: A. molecular carbon B. molecular oxygen C. atomic oxygen D. molecular nitrogen Which option is correct and why?
The correct answer is: molecular oxygen.
B
What is the most diverse and abundant group of organisms on earth, numbering in the millions of trillions?
[ "bacteria", "pathogens", "viruses", "pests" ]
bacteria
Answer the following multiple-choice question. Question: What is the most diverse and abundant group of organisms on earth, numbering in the millions of trillions? Options: A. bacteria B. pathogens C. viruses D. pests Which option is correct and why?
The correct answer is: bacteria.
A
If a mistake is made by dna polymerase while adding nucleotides, incorrect bases are removed and replaced by the correct base, and the process of what continues?
[ "hybridization", "fermentation", "digestion", "polymerization" ]
polymerization
Answer the following multiple-choice question. Question: If a mistake is made by dna polymerase while adding nucleotides, incorrect bases are removed and replaced by the correct base, and the process of what continues? Options: A. hybridization B. fermentation C. digestion D. polymerization Which option is correct and why?
The correct answer is: polymerization.
D
what fuses to form a diploid zygote during fertilization?
[ "seeds", "white", "Flowers", "pollen", "potatoes", "orchids", "gametes", "barnacles" ]
gametes
Answer the following multiple-choice question. Question: what fuses to form a diploid zygote during fertilization? Options: A. seeds B. white C. Flowers D. pollen E. potatoes F. orchids G. gametes H. barnacles Which option is correct and why?
The correct answer is: gametes.
A
What is a type of plant tissue consisting of undifferentiated cells that can continue to divide and differentiate?
[ "cambium", "meristem", "epidermis", "ganglion" ]
meristem
Answer the following multiple-choice question. Question: What is a type of plant tissue consisting of undifferentiated cells that can continue to divide and differentiate? Options: A. cambium B. meristem C. epidermis D. ganglion Which option is correct and why?
The correct answer is: meristem.
B
When the ventricles begin to contract, pressure within the ventricles rises and blood flows toward the area of lowest pressure, which is initially in the atria. this backflow causes the cusps of the tricuspid and mitral (bicuspid) valves to close. these valves are tied down to the papillary muscles by these?
[ "chollphyide tendineae", "choanocyte tendineae", "chordae tendineae", "photoreactive tendineae" ]
chordae tendineae
Answer the following multiple-choice question. Question: When the ventricles begin to contract, pressure within the ventricles rises and blood flows toward the area of lowest pressure, which is initially in the atria. this backflow causes the cusps of the tricuspid and mitral (bicuspid) valves to close. these valves are tied down to the papillary muscles by these? Options: A. chollphyide tendineae B. choanocyte tendineae C. chordae tendineae D. photoreactive tendineae Which option is correct and why?
The correct answer is: chordae tendineae.
C
What can lead to alkalosis?
[ "metabolic reaction", "Breathing too fast or too slow", "Drinking too much water.", "Something that causes allergies", "Sleeping too much.", "direct damage to the lungs", "Warm air moving into cold air", "Eating too much." ]
Breathing too fast or too slow
Answer the following multiple-choice question. Question: What can lead to alkalosis? Options: A. metabolic reaction B. Breathing too fast or too slow C. Drinking too much water. D. Something that causes allergies E. Sleeping too much. F. direct damage to the lungs G. Warm air moving into cold air H. Eating too much. Which option is correct and why?
The correct answer is: Breathing too fast or too slow.
B
In what human organ system would you find live e. coli bacteria?
[ "respiratory system", "skeletal system", "circulatory system", "digestive system" ]
digestive system
Answer the following multiple-choice question. Question: In what human organ system would you find live e. coli bacteria? Options: A. respiratory system B. skeletal system C. circulatory system D. digestive system Which option is correct and why?
The correct answer is: digestive system.
D
As blood glucose levels rise what is released from the pancreas?
[ "estrogen", "hemoglobin", "adrenaline", "insulin" ]
insulin
Answer the following multiple-choice question. Question: As blood glucose levels rise what is released from the pancreas? Options: A. estrogen B. hemoglobin C. adrenaline D. insulin Which option is correct and why?
The correct answer is: insulin.
D
Macroevolution most likely occurs over what period of time?
[ "Summer", "length", "eons", "long", "growth", "Earth", "years", "scale" ]
eons
Answer the following multiple-choice question. Question: Macroevolution most likely occurs over what period of time? Options: A. Summer B. length C. eons D. long E. growth F. Earth G. years H. scale Which option is correct and why?
The correct answer is: eons.
C
The gene pool expands through fertilization and:
[ "offspring", "agriculture", "mutation", "babies", "seeds", "zygotes", "relocation", "competition" ]
mutation
Answer the following multiple-choice question. Question: The gene pool expands through fertilization and: Options: A. offspring B. agriculture C. mutation D. babies E. seeds F. zygotes G. relocation H. competition Which option is correct and why?
The correct answer is: mutation.
C
Alleles that carry deadly diseases are usually which type?
[ "predominant", "dominant", "inherited", "recessive" ]
recessive
Answer the following multiple-choice question. Question: Alleles that carry deadly diseases are usually which type? Options: A. predominant B. dominant C. inherited D. recessive Which option is correct and why?
The correct answer is: recessive.
D
A dog that has a very thick tail, that mates with another dog with a thick tail, has a strong likelihood of creating a litter of
[ "calico kittens", "tailless pups", "small tailed pups", "dense tailed pups" ]
dense tailed pups
Answer the following multiple-choice question. Question: A dog that has a very thick tail, that mates with another dog with a thick tail, has a strong likelihood of creating a litter of Options: A. calico kittens B. tailless pups C. small tailed pups D. dense tailed pups Which option is correct and why?
The correct answer is: dense tailed pups.
D
The chytrids the only class in the phylum chytridiomycota is the chytridiomycetes. the chytrids are the simplest and most primitive eumycota, or true this?
[ "fungi", "acids", "proteins", "organisms" ]
fungi
Answer the following multiple-choice question. Question: The chytrids the only class in the phylum chytridiomycota is the chytridiomycetes. the chytrids are the simplest and most primitive eumycota, or true this? Options: A. fungi B. acids C. proteins D. organisms Which option is correct and why?
The correct answer is: fungi.
A
threatening behavior causes
[ "to move people", "population movement", "adrenaline to surge", "hypothyroidism", "a pathogens", "Plant growth is reduced", "Greenhouse gasses", "hyperthyroidism" ]
adrenaline to surge
Answer the following multiple-choice question. Question: threatening behavior causes Options: A. to move people B. population movement C. adrenaline to surge D. hypothyroidism E. a pathogens F. Plant growth is reduced G. Greenhouse gasses H. hyperthyroidism Which option is correct and why?
The correct answer is: adrenaline to surge.
C
The amount of power passed through transmission lines can be calculated by multiplying voltage by what?
[ "current", "amplification", "induction", "resistance" ]
current
Answer the following multiple-choice question. Question: The amount of power passed through transmission lines can be calculated by multiplying voltage by what? Options: A. current B. amplification C. induction D. resistance Which option is correct and why?
The correct answer is: current.
A
What dense environment is often dark in color?
[ "plains", "mountains", "tree land", "deserts" ]
tree land
Answer the following multiple-choice question. Question: What dense environment is often dark in color? Options: A. plains B. mountains C. tree land D. deserts Which option is correct and why?
The correct answer is: tree land.
C
Mammals with blow holes can hear signals called
[ "radio waves", "air horns", "people talking", "clicks" ]
clicks
Answer the following multiple-choice question. Question: Mammals with blow holes can hear signals called Options: A. radio waves B. air horns C. people talking D. clicks Which option is correct and why?
The correct answer is: clicks.
D
What requires nutrients to grow?
[ "apples", "goats", "rocks", "dirt", "oak", "elms", "light", "grass" ]
elms
Answer the following multiple-choice question. Question: What requires nutrients to grow? Options: A. apples B. goats C. rocks D. dirt E. oak F. elms G. light H. grass Which option is correct and why?
The correct answer is: elms.
A
The transmitted light strikes a photoelectric tube, which converts the light energy to?
[ "electricity", "gas", "heat", "color" ]
electricity
Answer the following multiple-choice question. Question: The transmitted light strikes a photoelectric tube, which converts the light energy to? Options: A. electricity B. gas C. heat D. color Which option is correct and why?
The correct answer is: electricity.
A
What type of lines run next to each other?
[ "perpendicular lines", "fault lines", "crater lines", "contour lines" ]
contour lines
Answer the following multiple-choice question. Question: What type of lines run next to each other? Options: A. perpendicular lines B. fault lines C. crater lines D. contour lines Which option is correct and why?
The correct answer is: contour lines.
D
Putting heat on and around something like the following can cause a chemical reaction:
[ "a marble slab", "carrot cake batter", "a stone", "a dirt patch" ]
carrot cake batter
Answer the following multiple-choice question. Question: Putting heat on and around something like the following can cause a chemical reaction: Options: A. a marble slab B. carrot cake batter C. a stone D. a dirt patch Which option is correct and why?
The correct answer is: carrot cake batter.
B
evolution is the change in characteristics of what over time?
[ "gravity", "animals", "vegetation", "h2o", "density", "organisms", "alleles", "humans" ]
organisms
Answer the following multiple-choice question. Question: evolution is the change in characteristics of what over time? Options: A. gravity B. animals C. vegetation D. h2o E. density F. organisms G. alleles H. humans Which option is correct and why?
The correct answer is: organisms.
A
Birds eat nuts, but sometimes they eat
[ "wolves", "bugs", "dogs", "cats" ]
bugs
Answer the following multiple-choice question. Question: Birds eat nuts, but sometimes they eat Options: A. wolves B. bugs C. dogs D. cats Which option is correct and why?
The correct answer is: bugs.
B
Which thrives in unusually hot and dry places?
[ "jellyfish", "arctic foxes", "fennec foxes", "polar bears" ]
fennec foxes
Answer the following multiple-choice question. Question: Which thrives in unusually hot and dry places? Options: A. jellyfish B. arctic foxes C. fennec foxes D. polar bears Which option is correct and why?
The correct answer is: fennec foxes.
C
Which is higher on the food chain?
[ "insects", "animals", "humans", "glucose", "decomposers", "herbivores", "producers", "consumers" ]
consumers
Answer the following multiple-choice question. Question: Which is higher on the food chain? Options: A. insects B. animals C. humans D. glucose E. decomposers F. herbivores G. producers H. consumers Which option is correct and why?
The correct answer is: consumers.
A
An item such as a soda can is broken down. This means that the soda can is now
[ "completely whole", "all together", "an intact item", "in detached components" ]
in detached components
Answer the following multiple-choice question. Question: An item such as a soda can is broken down. This means that the soda can is now Options: A. completely whole B. all together C. an intact item D. in detached components Which option is correct and why?
The correct answer is: in detached components.
D
Materials that react with other substances to delivery energy, and derived from the remains of living organisms are
[ "excellent for the environment", "a resource being depleted", "never going to run out", "hardly used anywhere by anyone" ]
a resource being depleted
Answer the following multiple-choice question. Question: Materials that react with other substances to delivery energy, and derived from the remains of living organisms are Options: A. excellent for the environment B. a resource being depleted C. never going to run out D. hardly used anywhere by anyone Which option is correct and why?
The correct answer is: a resource being depleted.
B
what populations do not grow through cell division because they are not cells?
[ "HPV", "lung", "AIDS", "corn", "plants", "humans", "mitosis", "HIV" ]
HIV
Answer the following multiple-choice question. Question: what populations do not grow through cell division because they are not cells? Options: A. HPV B. lung C. AIDS D. corn E. plants F. humans G. mitosis H. HIV Which option is correct and why?
The correct answer is: HIV.
A
Which of these industries is most likely to effect an ecosystem?
[ "food", "coal", "solar", "retail" ]
coal
Answer the following multiple-choice question. Question: Which of these industries is most likely to effect an ecosystem? Options: A. food B. coal C. solar D. retail Which option is correct and why?
The correct answer is: coal.
B
As a pond is slowly evaporated, the food for ducks in that area
[ "is tasteless", "is more", "is booming", "is less" ]
is less
Answer the following multiple-choice question. Question: As a pond is slowly evaporated, the food for ducks in that area Options: A. is tasteless B. is more C. is booming D. is less Which option is correct and why?
The correct answer is: is less.
D
These would likely be broken down and recycled
[ "waste helium", "waste hydrogen", "pallets", "waste oil" ]
pallets
Answer the following multiple-choice question. Question: These would likely be broken down and recycled Options: A. waste helium B. waste hydrogen C. pallets D. waste oil Which option is correct and why?
The correct answer is: pallets.
C
A pesticide is used for protecting plants by killing what?
[ "Something with a stalk", "Something made primarily of oxygen and nitrogen", "Something with a head, thorax, and abdomen", "Something with a backbone", "animals in the class reptilia", "spring, summer, autumn, winter", "Something with a single cell", "Microscopic organisms" ]
Something with a head, thorax, and abdomen
Answer the following multiple-choice question. Question: A pesticide is used for protecting plants by killing what? Options: A. Something with a stalk B. Something made primarily of oxygen and nitrogen C. Something with a head, thorax, and abdomen D. Something with a backbone E. animals in the class reptilia F. spring, summer, autumn, winter G. Something with a single cell H. Microscopic organisms Which option is correct and why?
The correct answer is: Something with a head, thorax, and abdomen.
C
What travel throughout the body in the blood?
[ "testes", "matter vibrating", "zygotes", "gametes", "kinetic energy", "chemical messengers", "Veins and arteries.", "electromagnetic energy" ]
chemical messengers
Answer the following multiple-choice question. Question: What travel throughout the body in the blood? Options: A. testes B. matter vibrating C. zygotes D. gametes E. kinetic energy F. chemical messengers G. Veins and arteries. H. electromagnetic energy Which option is correct and why?
The correct answer is: chemical messengers.
A
Why would a species camouflage as a dangerous animal?
[ "to mate", "to avoid crocodiles", "to catch prey", "to build nests" ]
to avoid crocodiles
Answer the following multiple-choice question. Question: Why would a species camouflage as a dangerous animal? Options: A. to mate B. to avoid crocodiles C. to catch prey D. to build nests Which option is correct and why?
The correct answer is: to avoid crocodiles.
B
What flexible organ enables swallowing and speech?
[ "stomach", "diaphram", "large intestine", "tongue" ]
tongue
Answer the following multiple-choice question. Question: What flexible organ enables swallowing and speech? Options: A. stomach B. diaphram C. large intestine D. tongue Which option is correct and why?
The correct answer is: tongue.
D
Light is scattered from what in our atmosphere?
[ "ions", "matter", "particles", "molecules" ]
molecules
Answer the following multiple-choice question. Question: Light is scattered from what in our atmosphere? Options: A. ions B. matter C. particles D. molecules Which option is correct and why?
The correct answer is: molecules.
D
Which of the following relationships are true?
[ "lemons :: sound energy", "doorbells :: sound energy", "doorbells :: light energy", "lightbulbs :: sound energy" ]
doorbells :: sound energy
Answer the following multiple-choice question. Question: Which of the following relationships are true? Options: A. lemons :: sound energy B. doorbells :: sound energy C. doorbells :: light energy D. lightbulbs :: sound energy Which option is correct and why?
The correct answer is: doorbells :: sound energy.
B
Waxy leaves can be considered
[ "love", "anger", "happiness", "clothes" ]
clothes
Answer the following multiple-choice question. Question: Waxy leaves can be considered Options: A. love B. anger C. happiness D. clothes Which option is correct and why?
The correct answer is: clothes.
D
What can help plants grow?
[ "Drought", "Fertilizer", "Solar energy", "Acidic soil", "evaporation", "Energy.", "Lack of sunlight", "energy" ]
Fertilizer
Answer the following multiple-choice question. Question: What can help plants grow? Options: A. Drought B. Fertilizer C. Solar energy D. Acidic soil E. evaporation F. Energy. G. Lack of sunlight H. energy Which option is correct and why?
The correct answer is: Fertilizer.
B
A cloud that begins to precipitate onto the ground is
[ "fluttering", "laughing", "crowing", "leaking" ]
leaking
Answer the following multiple-choice question. Question: A cloud that begins to precipitate onto the ground is Options: A. fluttering B. laughing C. crowing D. leaking Which option is correct and why?
The correct answer is: leaking.
D
what is used for heating buildings?
[ "electrons in motion", "protons in motion", "coiled neutrons", "one celled organisms", "Movement of an air mass", "clouds", "igniting fuel and oxidiser", "compound of hydrogen oxygen" ]
electrons in motion
Answer the following multiple-choice question. Question: what is used for heating buildings? Options: A. electrons in motion B. protons in motion C. coiled neutrons D. one celled organisms E. Movement of an air mass F. clouds G. igniting fuel and oxidiser H. compound of hydrogen oxygen Which option is correct and why?
The correct answer is: electrons in motion.
A
What causes a planet's seasons?
[ "motion", "clouds", "cold", "climate", "temperature", "orbit", "gravity", "wind" ]
orbit
Answer the following multiple-choice question. Question: What causes a planet's seasons? Options: A. motion B. clouds C. cold D. climate E. temperature F. orbit G. gravity H. wind Which option is correct and why?
The correct answer is: orbit.
A
Rocket engines can lift rockets because
[ "of how much fuel they use", "of how fast they are", "of the power the hit the ground with", "of how tall they are" ]
of the power the hit the ground with
Answer the following multiple-choice question. Question: Rocket engines can lift rockets because Options: A. of how much fuel they use B. of how fast they are C. of the power the hit the ground with D. of how tall they are Which option is correct and why?
The correct answer is: of the power the hit the ground with.
C
What forms when there is a difference in temperature between the land and the air?
[ "smoke", "fog", "sandstorms", "tsunamis" ]
fog
Answer the following multiple-choice question. Question: What forms when there is a difference in temperature between the land and the air? Options: A. smoke B. fog C. sandstorms D. tsunamis Which option is correct and why?
The correct answer is: fog.
B
a student leaves a nail line on a mineral sample, so that mineral can be described as what?
[ "a mineral", "a soft mineral", "a liquid mineral", "a mineral melt" ]
a soft mineral
Answer the following multiple-choice question. Question: a student leaves a nail line on a mineral sample, so that mineral can be described as what? Options: A. a mineral B. a soft mineral C. a liquid mineral D. a mineral melt Which option is correct and why?
The correct answer is: a soft mineral.
B
Which activity usually requires using a non-renewable resource?
[ "decaying trees", "fissures of hot, acidic water", "Cutting down a tree", "burning coal", "deforestation", "Drying clothes in the sun", "Powering a wind turbine", "Operating an automobile" ]
Operating an automobile
Answer the following multiple-choice question. Question: Which activity usually requires using a non-renewable resource? Options: A. decaying trees B. fissures of hot, acidic water C. Cutting down a tree D. burning coal E. deforestation F. Drying clothes in the sun G. Powering a wind turbine H. Operating an automobile Which option is correct and why?
The correct answer is: Operating an automobile.
A
Extreme negative temperatures can cause a gaseous cloud to
[ "condense to solid", "expand outwardly", "disappear all together", "become a liquid" ]
condense to solid
Answer the following multiple-choice question. Question: Extreme negative temperatures can cause a gaseous cloud to Options: A. condense to solid B. expand outwardly C. disappear all together D. become a liquid Which option is correct and why?
The correct answer is: condense to solid.
A
Oxidation does not necessarily require heating. which is the common and natural method of oxidation?
[ "ageing", "fermentation", "rusting", "boiling" ]
rusting
Answer the following multiple-choice question. Question: Oxidation does not necessarily require heating. which is the common and natural method of oxidation? Options: A. ageing B. fermentation C. rusting D. boiling Which option is correct and why?
The correct answer is: rusting.
C
What do humans add to their food?
[ "nutrients", "Proteins", "Greenhouse gases", "pain", "gasoline", "Heat energy", "Energy.", "coal" ]
Heat energy
Answer the following multiple-choice question. Question: What do humans add to their food? Options: A. nutrients B. Proteins C. Greenhouse gases D. pain E. gasoline F. Heat energy G. Energy. H. coal Which option is correct and why?
The correct answer is: Heat energy.
A
When doing experiments
[ "eat food around the chemicals", "forego using safety protocols", "leave writing down data until everything is done", "guard against spilling hydrogen chloride" ]
guard against spilling hydrogen chloride
Answer the following multiple-choice question. Question: When doing experiments Options: A. eat food around the chemicals B. forego using safety protocols C. leave writing down data until everything is done D. guard against spilling hydrogen chloride Which option is correct and why?
The correct answer is: guard against spilling hydrogen chloride.
D
If soil is loose, it makes it what for oxygen to get in?
[ "seven", "boring", "harder", "simpler" ]
simpler
Answer the following multiple-choice question. Question: If soil is loose, it makes it what for oxygen to get in? Options: A. seven B. boring C. harder D. simpler Which option is correct and why?
The correct answer is: simpler.
D
Where does chemical digestion mainly occur?
[ "pancreas", "liver", "apendix", "small intestine" ]
small intestine
Answer the following multiple-choice question. Question: Where does chemical digestion mainly occur? Options: A. pancreas B. liver C. apendix D. small intestine Which option is correct and why?
The correct answer is: small intestine.
D
What is the measure of the force of gravity pulling down on an object called?
[ "weight", "mass", "volume", "factor" ]
weight
Answer the following multiple-choice question. Question: What is the measure of the force of gravity pulling down on an object called? Options: A. weight B. mass C. volume D. factor Which option is correct and why?
The correct answer is: weight.
A
Once a plant cell becomes specialized, what can they no longer do?
[ "cellular respiration", "osmosis", "divide", "photosynthesis" ]
divide
Answer the following multiple-choice question. Question: Once a plant cell becomes specialized, what can they no longer do? Options: A. cellular respiration B. osmosis C. divide D. photosynthesis Which option is correct and why?
The correct answer is: divide.
C
What type of organism is used to produce alcoholic beverages and bread?
[ "larvae", "yeast", "insects", "bacteria" ]
yeast
Answer the following multiple-choice question. Question: What type of organism is used to produce alcoholic beverages and bread? Options: A. larvae B. yeast C. insects D. bacteria Which option is correct and why?
The correct answer is: yeast.
B
TRH stimulates the pituitary gland to produce
[ "chemicals", "heat", "insulin", "testosterone", "grow", "growth", "endorphines", "Energy" ]
growth
Answer the following multiple-choice question. Question: TRH stimulates the pituitary gland to produce Options: A. chemicals B. heat C. insulin D. testosterone E. grow F. growth G. endorphines H. Energy Which option is correct and why?
The correct answer is: growth.
A
How essential is air for animals?
[ "it is optional", "it is necessary", "it is useless", "it is unknown" ]
it is necessary
Answer the following multiple-choice question. Question: How essential is air for animals? Options: A. it is optional B. it is necessary C. it is useless D. it is unknown Which option is correct and why?
The correct answer is: it is necessary.
B
What is the term for a push or a pull on an object?
[ "effort", "action", "force", "gravity" ]
force
Answer the following multiple-choice question. Question: What is the term for a push or a pull on an object? Options: A. effort B. action C. force D. gravity Which option is correct and why?
The correct answer is: force.
C
What part of the cell helps it keep its shape?
[ "cytoskeleton", "nucleus", "enzymes", "cytoplasm" ]
cytoskeleton
Answer the following multiple-choice question. Question: What part of the cell helps it keep its shape? Options: A. cytoskeleton B. nucleus C. enzymes D. cytoplasm Which option is correct and why?
The correct answer is: cytoskeleton.
A
Metals, fossil fuels, and water are all examples of what type of resource?
[ "ores", "renewable resources", "natural resources", "recyclables" ]
natural resources
Answer the following multiple-choice question. Question: Metals, fossil fuels, and water are all examples of what type of resource? Options: A. ores B. renewable resources C. natural resources D. recyclables Which option is correct and why?
The correct answer is: natural resources.
C
A toaster converts electrical energy into what for toasting?
[ "waves", "motion", "Vibrates", "Joules", "warmth", "photons", "Solutions", "movement" ]
Joules
Answer the following multiple-choice question. Question: A toaster converts electrical energy into what for toasting? Options: A. waves B. motion C. Vibrates D. Joules E. warmth F. photons G. Solutions H. movement Which option is correct and why?
The correct answer is: Joules.
D
This non-native crop is now available in Africa
[ "rice", "corn", "coffee", "beans" ]
corn
Answer the following multiple-choice question. Question: This non-native crop is now available in Africa Options: A. rice B. corn C. coffee D. beans Which option is correct and why?
The correct answer is: corn.
B
What do ancathostega have four of?
[ "Eggs", "feet", "Wings", "alveoli", "Lungs", "ovaries", "rings", "Limbs" ]
Limbs
Answer the following multiple-choice question. Question: What do ancathostega have four of? Options: A. Eggs B. feet C. Wings D. alveoli E. Lungs F. ovaries G. rings H. Limbs Which option is correct and why?
The correct answer is: Limbs.
A
What do veins carry?
[ "copper", "glucose", "Energy", "Length", "oxygen", "warmth", "Cells", "voltage" ]
Cells
Answer the following multiple-choice question. Question: What do veins carry? Options: A. copper B. glucose C. Energy D. Length E. oxygen F. warmth G. Cells H. voltage Which option is correct and why?
The correct answer is: Cells.
A
What has decreased precipitation?
[ "wind", "rainforest", "swampland", "deserts", "burning", "forest", "herbicide", "cold air" ]
deserts
Answer the following multiple-choice question. Question: What has decreased precipitation? Options: A. wind B. rainforest C. swampland D. deserts E. burning F. forest G. herbicide H. cold air Which option is correct and why?
The correct answer is: deserts.
D
A penguin must do what before molting?
[ "hibernate", "mate", "use muscle mass", "increase muscle mass" ]
increase muscle mass
Answer the following multiple-choice question. Question: A penguin must do what before molting? Options: A. hibernate B. mate C. use muscle mass D. increase muscle mass Which option is correct and why?
The correct answer is: increase muscle mass.
D
What does a solar panel in sunlight provide?
[ "two", "images", "photons", "Light", "cells", "heat", "Power", "homes" ]
Power
Answer the following multiple-choice question. Question: What does a solar panel in sunlight provide? Options: A. two B. images C. photons D. Light E. cells F. heat G. Power H. homes Which option is correct and why?
The correct answer is: Power.
A
What property is a measure of the average kinetic energy of molecules?
[ "density", "velocity", "temperature", "mass" ]
temperature
Answer the following multiple-choice question. Question: What property is a measure of the average kinetic energy of molecules? Options: A. density B. velocity C. temperature D. mass Which option is correct and why?
The correct answer is: temperature.
C
The type of supportive community that lions live in is called what?
[ "neighborhood", "good", "a pride", "warm", "group", "the Lion's Club", "complex", "positive" ]
a pride
Answer the following multiple-choice question. Question: The type of supportive community that lions live in is called what? Options: A. neighborhood B. good C. a pride D. warm E. group F. the Lion's Club G. complex H. positive Which option is correct and why?
The correct answer is: a pride.
C
What is the motion that moves the forearm from the supinated position to the pronated position?
[ "extension", "flexion", "supination", "pronation" ]
pronation
Answer the following multiple-choice question. Question: What is the motion that moves the forearm from the supinated position to the pronated position? Options: A. extension B. flexion C. supination D. pronation Which option is correct and why?
The correct answer is: pronation.
D
Ice wedging is when freezing water expands and what?
[ "a delta", "breaks rocks", "closes schools", "freezes gas", "destroys toys", "erosion", "solid, liquid, gas", "near the shoreline" ]
breaks rocks
Answer the following multiple-choice question. Question: Ice wedging is when freezing water expands and what? Options: A. a delta B. breaks rocks C. closes schools D. freezes gas E. destroys toys F. erosion G. solid, liquid, gas H. near the shoreline Which option is correct and why?
The correct answer is: breaks rocks.
B
How many lobes is each hemisphere of the cerebrum divided into?
[ "2", "5", "4", "9" ]
4
Answer the following multiple-choice question. Question: How many lobes is each hemisphere of the cerebrum divided into? Options: A. 2 B. 5 C. 4 D. 9 Which option is correct and why?
The correct answer is: 4.
C
What animal increases plants genetic diversity?
[ "Reproduction", "Plant reproduction", "flowers", "Hummingbirds", "fish", "whales", "sharks", "animals" ]
Hummingbirds
Answer the following multiple-choice question. Question: What animal increases plants genetic diversity? Options: A. Reproduction B. Plant reproduction C. flowers D. Hummingbirds E. fish F. whales G. sharks H. animals Which option is correct and why?
The correct answer is: Hummingbirds.
D
what unit of time can be estimated by the rings in a tree trunk?
[ "hours", "decades", "months", "H20", "Joules", "DNA", "years", "seasons" ]
years
Answer the following multiple-choice question. Question: what unit of time can be estimated by the rings in a tree trunk? Options: A. hours B. decades C. months D. H20 E. Joules F. DNA G. years H. seasons Which option is correct and why?
The correct answer is: years.
A
If a duck lays seven eggs and last year they laid zero eggs, this year they are
[ "male", "increasing young", "producing zero", "producing live young" ]
increasing young
Answer the following multiple-choice question. Question: If a duck lays seven eggs and last year they laid zero eggs, this year they are Options: A. male B. increasing young C. producing zero D. producing live young Which option is correct and why?
The correct answer is: increasing young.
B
with which could you tell the exact size of an object?
[ "a plain stick with irregular shape", "a plastic tape with graduated markings", "a thermometer with mercury in it", "a metal cooking spoon" ]
a plastic tape with graduated markings
Answer the following multiple-choice question. Question: with which could you tell the exact size of an object? Options: A. a plain stick with irregular shape B. a plastic tape with graduated markings C. a thermometer with mercury in it D. a metal cooking spoon Which option is correct and why?
The correct answer is: a plastic tape with graduated markings.
B
What causes objects that have mass to be pulled down?
[ "planetary pull", "wind", "water force", "weight" ]
planetary pull
Answer the following multiple-choice question. Question: What causes objects that have mass to be pulled down? Options: A. planetary pull B. wind C. water force D. weight Which option is correct and why?
The correct answer is: planetary pull.
A
What reads genetic code in mRNA and makes a nitrogenous compound?
[ "A computer", "Plants growth", "peachleaf willow", "sensory neurons", "translation", "Most plants", "animals", "acetic acid" ]
translation
Answer the following multiple-choice question. Question: What reads genetic code in mRNA and makes a nitrogenous compound? Options: A. A computer B. Plants growth C. peachleaf willow D. sensory neurons E. translation F. Most plants G. animals H. acetic acid Which option is correct and why?
The correct answer is: translation.
E
What do flowers use to attract pollinators?
[ "sun light", "hormones", "buzzing", "honey", "sugary liquid", "hydrogen and oxygen", "Electrical energy", "organic molecules" ]
sugary liquid
Answer the following multiple-choice question. Question: What do flowers use to attract pollinators? Options: A. sun light B. hormones C. buzzing D. honey E. sugary liquid F. hydrogen and oxygen G. Electrical energy H. organic molecules Which option is correct and why?
The correct answer is: sugary liquid.
E
In multicellular organisms, mutations can be subdivided into germline mutations and?
[ "comparative mutations", "somatic mutations", "resultant mutations", "elective mutations" ]
somatic mutations
Answer the following multiple-choice question. Question: In multicellular organisms, mutations can be subdivided into germline mutations and? Options: A. comparative mutations B. somatic mutations C. resultant mutations D. elective mutations Which option is correct and why?
The correct answer is: somatic mutations.
B
By breaking down wastes and remains of dead organisms, decomposers perform what function in an ecosystem?
[ "reproduction", "symbiosis", "collecting", "recycling" ]
recycling
Answer the following multiple-choice question. Question: By breaking down wastes and remains of dead organisms, decomposers perform what function in an ecosystem? Options: A. reproduction B. symbiosis C. collecting D. recycling Which option is correct and why?
The correct answer is: recycling.
D
An overheated body can use water for:
[ "metabolic reaction", "dehydrating", "raising their temperature", "heat produced", "liquid", "watering plants", "evaporative cooling", "retaining heat" ]
evaporative cooling
Answer the following multiple-choice question. Question: An overheated body can use water for: Options: A. metabolic reaction B. dehydrating C. raising their temperature D. heat produced E. liquid F. watering plants G. evaporative cooling H. retaining heat Which option is correct and why?
The correct answer is: evaporative cooling.
A
After an infection has been brought under control and most cytotoxic t cells die off, a few remain as what?
[ "b cells", "natural killer cells", "memory cells", "control cells" ]
memory cells
Answer the following multiple-choice question. Question: After an infection has been brought under control and most cytotoxic t cells die off, a few remain as what? Options: A. b cells B. natural killer cells C. memory cells D. control cells Which option is correct and why?
The correct answer is: memory cells.
C
Neutron stars are the corpses of left over what?
[ "supernova explosions", "stellar explosions", "planet explosions", "gravitational explosions" ]
supernova explosions
Answer the following multiple-choice question. Question: Neutron stars are the corpses of left over what? Options: A. supernova explosions B. stellar explosions C. planet explosions D. gravitational explosions Which option is correct and why?
The correct answer is: supernova explosions.
A
what has force exerted on it when kicked?
[ "gravity", "density", "feet", "car tire", "Sand dollars", "volume", "vehicles", "some mammals" ]
car tire
Answer the following multiple-choice question. Question: what has force exerted on it when kicked? Options: A. gravity B. density C. feet D. car tire E. Sand dollars F. volume G. vehicles H. some mammals Which option is correct and why?
The correct answer is: car tire.
D