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|---|---|---|---|---|
The molecular formula is still c 4 h 10 , which is the same formula as?
|
[
"carbon hydroxide",
"butane",
"chlorine",
"propane"
] |
butane
|
Answer the following multiple-choice question.
Question: The molecular formula is still c 4 h 10 , which is the same formula as?
Options:
A. carbon hydroxide
B. butane
C. chlorine
D. propane
Which option is correct and why?
|
The correct answer is: butane.
|
The anatomical arrangement of capillaries and alveoli emphasizes the structural and functional relationship of what systems?
|
[
"nervous and lymphatic",
"respiratory and circulatory",
"endocrine and renal",
"digestive and respiratory"
] |
respiratory and circulatory
|
Answer the following multiple-choice question.
Question: The anatomical arrangement of capillaries and alveoli emphasizes the structural and functional relationship of what systems?
Options:
A. nervous and lymphatic
B. respiratory and circulatory
C. endocrine and renal
D. digestive and respiratory
Which option is correct and why?
|
The correct answer is: respiratory and circulatory.
|
Instead of a nervous system, plant responses are generally controlled by what type of molecules, which serves as chemical messengers?
|
[
"hormones",
"receptors",
"enzymes",
"sugars"
] |
hormones
|
Answer the following multiple-choice question.
Question: Instead of a nervous system, plant responses are generally controlled by what type of molecules, which serves as chemical messengers?
Options:
A. hormones
B. receptors
C. enzymes
D. sugars
Which option is correct and why?
|
The correct answer is: hormones.
|
Cellular respiration and photosynthesis are important parts of which cycle?
|
[
"greenhouse effect",
"water cycle",
"vapor cycle",
"carbon cycle"
] |
carbon cycle
|
Answer the following multiple-choice question.
Question: Cellular respiration and photosynthesis are important parts of which cycle?
Options:
A. greenhouse effect
B. water cycle
C. vapor cycle
D. carbon cycle
Which option is correct and why?
|
The correct answer is: carbon cycle.
|
Certain medications can suppress the immune system. this is an intended effect of drugs given to people with what?
|
[
"genetic disorders",
"transplanted organs",
"benign tumors",
"infections"
] |
transplanted organs
|
Answer the following multiple-choice question.
Question: Certain medications can suppress the immune system. this is an intended effect of drugs given to people with what?
Options:
A. genetic disorders
B. transplanted organs
C. benign tumors
D. infections
Which option is correct and why?
|
The correct answer is: transplanted organs.
|
What is most impervious to an ax?
|
[
"a thin branch",
"a neck",
"a twig",
"a boulder"
] |
a boulder
|
Answer the following multiple-choice question.
Question: What is most impervious to an ax?
Options:
A. a thin branch
B. a neck
C. a twig
D. a boulder
Which option is correct and why?
|
The correct answer is: a boulder.
|
What's the term for a relationship between two organisms where at least one benefits?
|
[
"meiosis",
"dermatitis",
"symbiosis",
"morphogenesis"
] |
symbiosis
|
Answer the following multiple-choice question.
Question: What's the term for a relationship between two organisms where at least one benefits?
Options:
A. meiosis
B. dermatitis
C. symbiosis
D. morphogenesis
Which option is correct and why?
|
The correct answer is: symbiosis.
|
Vertebrates differ from invertebrates because they lack this?
|
[
"backbone or a spinal column",
"neck",
"legs",
"head"
] |
backbone or a spinal column
|
Answer the following multiple-choice question.
Question: Vertebrates differ from invertebrates because they lack this?
Options:
A. backbone or a spinal column
B. neck
C. legs
D. head
Which option is correct and why?
|
The correct answer is: backbone or a spinal column.
|
A mechanism that a ____ uses is a ____
|
[
"see-saw; pulley",
"crane; pulley",
"lever; lever",
"cat; fishing rod"
] |
crane; pulley
|
Answer the following multiple-choice question.
Question: A mechanism that a ____ uses is a ____
Options:
A. see-saw; pulley
B. crane; pulley
C. lever; lever
D. cat; fishing rod
Which option is correct and why?
|
The correct answer is: crane; pulley.
|
To the extent that behaviors are controlled by what, they may evolve through natural selection?
|
[
"genes",
"rna",
"mutation",
"dna"
] |
genes
|
Answer the following multiple-choice question.
Question: To the extent that behaviors are controlled by what, they may evolve through natural selection?
Options:
A. genes
B. rna
C. mutation
D. dna
Which option is correct and why?
|
The correct answer is: genes.
|
What device changes kinetic energy to electrical energy through electromagnetic induction?
|
[
"electric generator",
"due generator",
"real generator",
"Emission generator"
] |
electric generator
|
Answer the following multiple-choice question.
Question: What device changes kinetic energy to electrical energy through electromagnetic induction?
Options:
A. electric generator
B. due generator
C. real generator
D. Emission generator
Which option is correct and why?
|
The correct answer is: electric generator.
|
The average human body contains 5,830 g of what?
|
[
"water",
"bacteria",
"blood",
"muscle"
] |
blood
|
Answer the following multiple-choice question.
Question: The average human body contains 5,830 g of what?
Options:
A. water
B. bacteria
C. blood
D. muscle
Which option is correct and why?
|
The correct answer is: blood.
|
When a wildfire happens what catches fire?
|
[
"rocks",
"timberland",
"water",
"rivers"
] |
timberland
|
Answer the following multiple-choice question.
Question: When a wildfire happens what catches fire?
Options:
A. rocks
B. timberland
C. water
D. rivers
Which option is correct and why?
|
The correct answer is: timberland.
|
The cochlea and vestibul make up what part of the ear?
|
[
"middle",
"inner",
"upper",
"outer"
] |
inner
|
Answer the following multiple-choice question.
Question: The cochlea and vestibul make up what part of the ear?
Options:
A. middle
B. inner
C. upper
D. outer
Which option is correct and why?
|
The correct answer is: inner.
|
How is ice made?
|
[
"The area was once underwater",
"Melting it",
"Drying it out",
"salt and water.",
"It gets heated up",
"It used to be covered by water",
"Boiling the water",
"Reducing heat energy"
] |
Reducing heat energy
|
Answer the following multiple-choice question.
Question: How is ice made?
Options:
A. The area was once underwater
B. Melting it
C. Drying it out
D. salt and water.
E. It gets heated up
F. It used to be covered by water
G. Boiling the water
H. Reducing heat energy
Which option is correct and why?
|
The correct answer is: Reducing heat energy.
|
Avoiding carcinogens helps lower the risk of what?
|
[
"cancer",
"radiation",
"sunburn",
"colds and flu"
] |
cancer
|
Answer the following multiple-choice question.
Question: Avoiding carcinogens helps lower the risk of what?
Options:
A. cancer
B. radiation
C. sunburn
D. colds and flu
Which option is correct and why?
|
The correct answer is: cancer.
|
How many stages does the process that produces gametes have?
|
[
"12",
"DNA",
"Five",
"step",
"Two",
"ovum",
"four",
"eggs"
] |
Two
|
Answer the following multiple-choice question.
Question: How many stages does the process that produces gametes have?
Options:
A. 12
B. DNA
C. Five
D. step
E. Two
F. ovum
G. four
H. eggs
Which option is correct and why?
|
The correct answer is: Two.
|
What is used to remove lead from the stomach?
|
[
"Vomiting reflex",
"heat energy",
"Fish hook",
"layers of fat",
"an electron microscope",
"evaporation",
"digestion",
"acid"
] |
Vomiting reflex
|
Answer the following multiple-choice question.
Question: What is used to remove lead from the stomach?
Options:
A. Vomiting reflex
B. heat energy
C. Fish hook
D. layers of fat
E. an electron microscope
F. evaporation
G. digestion
H. acid
Which option is correct and why?
|
The correct answer is: Vomiting reflex.
|
What is an electrically neutral compound with positive and negative ions?
|
[
"ionic compound",
"neutralized molecule",
"correlated compound",
"isotope"
] |
ionic compound
|
Answer the following multiple-choice question.
Question: What is an electrically neutral compound with positive and negative ions?
Options:
A. ionic compound
B. neutralized molecule
C. correlated compound
D. isotope
Which option is correct and why?
|
The correct answer is: ionic compound.
|
Both endotherms and ectotherms control what through behavioral responses to changes in the environment?
|
[
"sleep cycles",
"gas temperature",
"hormones",
"body temperature"
] |
body temperature
|
Answer the following multiple-choice question.
Question: Both endotherms and ectotherms control what through behavioral responses to changes in the environment?
Options:
A. sleep cycles
B. gas temperature
C. hormones
D. body temperature
Which option is correct and why?
|
The correct answer is: body temperature.
|
null | null | null | null | null |
This material was less of a thermal conductor
|
[
"aluminum",
"copper",
"thermal underwear",
"steel"
] |
thermal underwear
|
Answer the following multiple-choice question.
Question: This material was less of a thermal conductor
Options:
A. aluminum
B. copper
C. thermal underwear
D. steel
Which option is correct and why?
|
The correct answer is: thermal underwear.
|
if a person commits arson, which of these might be found as the source in the remains?
|
[
"a new cold water bottle",
"a new portable stove",
"a new hot coffee",
"a blue plastic comb"
] |
a new portable stove
|
Answer the following multiple-choice question.
Question: if a person commits arson, which of these might be found as the source in the remains?
Options:
A. a new cold water bottle
B. a new portable stove
C. a new hot coffee
D. a blue plastic comb
Which option is correct and why?
|
The correct answer is: a new portable stove.
|
Friction causes the heat of an object to do what?
|
[
"increase",
"energy",
"slowing it down",
"Energy.",
"It expands",
"decrease",
"Evaporation",
"stay the same"
] |
increase
|
Answer the following multiple-choice question.
Question: Friction causes the heat of an object to do what?
Options:
A. increase
B. energy
C. slowing it down
D. Energy.
E. It expands
F. decrease
G. Evaporation
H. stay the same
Which option is correct and why?
|
The correct answer is: increase.
|
The highest blood pressure is found in
|
[
"alveoli",
"toes",
"the eyes",
"arteries",
"humans",
"lungs",
"hemoglobin",
"veins"
] |
arteries
|
Answer the following multiple-choice question.
Question: The highest blood pressure is found in
Options:
A. alveoli
B. toes
C. the eyes
D. arteries
E. humans
F. lungs
G. hemoglobin
H. veins
Which option is correct and why?
|
The correct answer is: arteries.
|
Pathogens infect many animals and are agents of what?
|
[
"mutation",
"change",
"disease",
"drought"
] |
disease
|
Answer the following multiple-choice question.
Question: Pathogens infect many animals and are agents of what?
Options:
A. mutation
B. change
C. disease
D. drought
Which option is correct and why?
|
The correct answer is: disease.
|
Acetone is the simplest type of what organic compound that involves a carbonyl in which the carbon atom makes single bonds with two other carbon atoms?
|
[
"protein",
"enzyme",
"ketone",
"anion"
] |
ketone
|
Answer the following multiple-choice question.
Question: Acetone is the simplest type of what organic compound that involves a carbonyl in which the carbon atom makes single bonds with two other carbon atoms?
Options:
A. protein
B. enzyme
C. ketone
D. anion
Which option is correct and why?
|
The correct answer is: ketone.
|
A hang-glider that is soaring runs into gales head-on. The gales
|
[
"sinks the glider",
"speeds the glider",
"crashes the glider",
"slow the glider"
] |
slow the glider
|
Answer the following multiple-choice question.
Question: A hang-glider that is soaring runs into gales head-on. The gales
Options:
A. sinks the glider
B. speeds the glider
C. crashes the glider
D. slow the glider
Which option is correct and why?
|
The correct answer is: slow the glider.
|
If a screwdriver is bought from a high end store known for high quality, it will most likely end up
|
[
"falling apart quite fast",
"breaking in half immediately",
"with rotting wood this week",
"passed down from parent to child"
] |
passed down from parent to child
|
Answer the following multiple-choice question.
Question: If a screwdriver is bought from a high end store known for high quality, it will most likely end up
Options:
A. falling apart quite fast
B. breaking in half immediately
C. with rotting wood this week
D. passed down from parent to child
Which option is correct and why?
|
The correct answer is: passed down from parent to child.
|
What machine is used to determine the calories in food, as well as the average heat yield from burning various grades of coal and oil?
|
[
"radio telescope",
"thermometer",
"calorimeter",
"alethiometer"
] |
calorimeter
|
Answer the following multiple-choice question.
Question: What machine is used to determine the calories in food, as well as the average heat yield from burning various grades of coal and oil?
Options:
A. radio telescope
B. thermometer
C. calorimeter
D. alethiometer
Which option is correct and why?
|
The correct answer is: calorimeter.
|
What make distant objects appear both nearer and larger?
|
[
"lasers",
"astrolabes",
"telescopes",
"mirrors"
] |
telescopes
|
Answer the following multiple-choice question.
Question: What make distant objects appear both nearer and larger?
Options:
A. lasers
B. astrolabes
C. telescopes
D. mirrors
Which option is correct and why?
|
The correct answer is: telescopes.
|
When does a caldera form?
|
[
"before an eruption",
"after a hurricane",
"after an eruption",
"when faults form"
] |
after an eruption
|
Answer the following multiple-choice question.
Question: When does a caldera form?
Options:
A. before an eruption
B. after a hurricane
C. after an eruption
D. when faults form
Which option is correct and why?
|
The correct answer is: after an eruption.
|
Two events are defined to be simultaneous if an observer measures them as occurring at what?
|
[
"different times",
"midnight",
"opposite times",
"same time"
] |
same time
|
Answer the following multiple-choice question.
Question: Two events are defined to be simultaneous if an observer measures them as occurring at what?
Options:
A. different times
B. midnight
C. opposite times
D. same time
Which option is correct and why?
|
The correct answer is: same time.
|
Flowers make themselves attractive to hummingbirds with
|
[
"nocturnal access",
"prickly thorns",
"dull, subdued colors",
"an optimal angle"
] |
an optimal angle
|
Answer the following multiple-choice question.
Question: Flowers make themselves attractive to hummingbirds with
Options:
A. nocturnal access
B. prickly thorns
C. dull, subdued colors
D. an optimal angle
Which option is correct and why?
|
The correct answer is: an optimal angle.
|
What do some mollusks live near?
|
[
"gills",
"rivers",
"desert",
"roads",
"fungi",
"trout",
"clouds",
"water"
] |
trout
|
Answer the following multiple-choice question.
Question: What do some mollusks live near?
Options:
A. gills
B. rivers
C. desert
D. roads
E. fungi
F. trout
G. clouds
H. water
Which option is correct and why?
|
The correct answer is: trout.
|
null | null | null | null | null |
A person takes a bucket full of water and adds it to a full pool. After adding fifty buckets of water to the pool, it
|
[
"drains",
"dries",
"bloats",
"sinks"
] |
bloats
|
Answer the following multiple-choice question.
Question: A person takes a bucket full of water and adds it to a full pool. After adding fifty buckets of water to the pool, it
Options:
A. drains
B. dries
C. bloats
D. sinks
Which option is correct and why?
|
The correct answer is: bloats.
|
What must molecules have to be cis-trans isomers?
|
[
"double bond",
"single bond",
"triple bond",
"last bond"
] |
double bond
|
Answer the following multiple-choice question.
Question: What must molecules have to be cis-trans isomers?
Options:
A. double bond
B. single bond
C. triple bond
D. last bond
Which option is correct and why?
|
The correct answer is: double bond.
|
What process allows particles too large to move along the stream bed?
|
[
"channelization",
"impaction",
"diffusion",
"saltation"
] |
saltation
|
Answer the following multiple-choice question.
Question: What process allows particles too large to move along the stream bed?
Options:
A. channelization
B. impaction
C. diffusion
D. saltation
Which option is correct and why?
|
The correct answer is: saltation.
|
How does consuming enterobactin help our body?
|
[
"builds excess iron",
"eliminates excess iron",
"eliminates excess oxygen",
"eliminates excess fat"
] |
eliminates excess iron
|
Answer the following multiple-choice question.
Question: How does consuming enterobactin help our body?
Options:
A. builds excess iron
B. eliminates excess iron
C. eliminates excess oxygen
D. eliminates excess fat
Which option is correct and why?
|
The correct answer is: eliminates excess iron.
|
Burning coal worsens
|
[
"global warming",
"torn tendons",
"gender inequality",
"energy usage",
"Dehydration",
"Abnormal cell growth",
"The atmosphere",
"sound reproduction"
] |
global warming
|
Answer the following multiple-choice question.
Question: Burning coal worsens
Options:
A. global warming
B. torn tendons
C. gender inequality
D. energy usage
E. Dehydration
F. Abnormal cell growth
G. The atmosphere
H. sound reproduction
Which option is correct and why?
|
The correct answer is: global warming.
|
What part of the body are chemicals dangerous to?
|
[
"health",
"Frogs.",
"humans",
"salmon",
"Eyes",
"animal",
"toads",
"people"
] |
Eyes
|
Answer the following multiple-choice question.
Question: What part of the body are chemicals dangerous to?
Options:
A. health
B. Frogs.
C. humans
D. salmon
E. Eyes
F. animal
G. toads
H. people
Which option is correct and why?
|
The correct answer is: Eyes.
|
The Earth being tilted on its axis causes ones side to receive less
|
[
"water vapor",
"moisture",
"sunlight",
"harmful substances",
"carbon and oxygen",
"heat and light",
"Greenhouse gases",
"wind currents"
] |
heat and light
|
Answer the following multiple-choice question.
Question: The Earth being tilted on its axis causes ones side to receive less
Options:
A. water vapor
B. moisture
C. sunlight
D. harmful substances
E. carbon and oxygen
F. heat and light
G. Greenhouse gases
H. wind currents
Which option is correct and why?
|
The correct answer is: heat and light.
|
When gas particles collide, what kinds of collisions are these considered?
|
[
"conservative",
"inelastic",
"elastic",
"perfect"
] |
elastic
|
Answer the following multiple-choice question.
Question: When gas particles collide, what kinds of collisions are these considered?
Options:
A. conservative
B. inelastic
C. elastic
D. perfect
Which option is correct and why?
|
The correct answer is: elastic.
|
Co 2 , h 2 o, methane, o 3 , nitrous oxides (no and no 2 ), and chlorofluorocarbons (cfcs) are known as what type of gases?
|
[
"carbonate gases",
"chemical gases",
"greenhouse gases",
"hydrogen gases"
] |
greenhouse gases
|
Answer the following multiple-choice question.
Question: Co 2 , h 2 o, methane, o 3 , nitrous oxides (no and no 2 ), and chlorofluorocarbons (cfcs) are known as what type of gases?
Options:
A. carbonate gases
B. chemical gases
C. greenhouse gases
D. hydrogen gases
Which option is correct and why?
|
The correct answer is: greenhouse gases.
|
What measures a fluid’s resistance to flow?
|
[
"elasticity",
"viscosity",
"density",
"surface tension"
] |
viscosity
|
Answer the following multiple-choice question.
Question: What measures a fluid’s resistance to flow?
Options:
A. elasticity
B. viscosity
C. density
D. surface tension
Which option is correct and why?
|
The correct answer is: viscosity.
|
How can we reduce use of energy resources?
|
[
"restoration",
"modification",
"conservation",
"liberation"
] |
conservation
|
Answer the following multiple-choice question.
Question: How can we reduce use of energy resources?
Options:
A. restoration
B. modification
C. conservation
D. liberation
Which option is correct and why?
|
The correct answer is: conservation.
|
What consists of structures that produce eggs and secrete female sex hormones?
|
[
"asexual reproductive system",
"female neural system",
"female reproductive system",
"male reproductive system"
] |
female reproductive system
|
Answer the following multiple-choice question.
Question: What consists of structures that produce eggs and secrete female sex hormones?
Options:
A. asexual reproductive system
B. female neural system
C. female reproductive system
D. male reproductive system
Which option is correct and why?
|
The correct answer is: female reproductive system.
|
How many more legs do spiders have compared to insects?
|
[
"four",
"six",
"two",
"one"
] |
two
|
Answer the following multiple-choice question.
Question: How many more legs do spiders have compared to insects?
Options:
A. four
B. six
C. two
D. one
Which option is correct and why?
|
The correct answer is: two.
|
What types of animals reproduce sexually?
|
[
"virus",
"produce offspring",
"larvae",
"Some animals with shells",
"mate with females",
"By wind and rain",
"spread flower seeds",
"acellular"
] |
Some animals with shells
|
Answer the following multiple-choice question.
Question: What types of animals reproduce sexually?
Options:
A. virus
B. produce offspring
C. larvae
D. Some animals with shells
E. mate with females
F. By wind and rain
G. spread flower seeds
H. acellular
Which option is correct and why?
|
The correct answer is: Some animals with shells.
|
What is named after the type of enzyme they interact with in the cell?
|
[
"receptor proteins",
"function proteins",
"nitrogen proteins",
"oxygen proteins"
] |
receptor proteins
|
Answer the following multiple-choice question.
Question: What is named after the type of enzyme they interact with in the cell?
Options:
A. receptor proteins
B. function proteins
C. nitrogen proteins
D. oxygen proteins
Which option is correct and why?
|
The correct answer is: receptor proteins.
|
What events, resulting in death of over half of animal species, have occurred on earth at least five times in the past 540 million years?
|
[
"microevolutions",
"mass migrations",
"spontaneous mutations",
"mass extinctions"
] |
mass extinctions
|
Answer the following multiple-choice question.
Question: What events, resulting in death of over half of animal species, have occurred on earth at least five times in the past 540 million years?
Options:
A. microevolutions
B. mass migrations
C. spontaneous mutations
D. mass extinctions
Which option is correct and why?
|
The correct answer is: mass extinctions.
|
androgens and what kind of messengers?
|
[
"animals",
"interact",
"organ",
"humans",
"chemical",
"PDAs",
"allow growth",
"kinetic"
] |
chemical
|
Answer the following multiple-choice question.
Question: androgens and what kind of messengers?
Options:
A. animals
B. interact
C. organ
D. humans
E. chemical
F. PDAs
G. allow growth
H. kinetic
Which option is correct and why?
|
The correct answer is: chemical.
|
An area of land has more rainfall, producing more plants of various species. The plant boom causes
|
[
"a hydrogen explosion",
"a boosted ecosystem",
"a crying child",
"an extreme drought"
] |
a boosted ecosystem
|
Answer the following multiple-choice question.
Question: An area of land has more rainfall, producing more plants of various species. The plant boom causes
Options:
A. a hydrogen explosion
B. a boosted ecosystem
C. a crying child
D. an extreme drought
Which option is correct and why?
|
The correct answer is: a boosted ecosystem.
|
What plays a variety of important roles in biochemical systems?
|
[
"bacteria",
"mutation",
"reactants",
"protein"
] |
protein
|
Answer the following multiple-choice question.
Question: What plays a variety of important roles in biochemical systems?
Options:
A. bacteria
B. mutation
C. reactants
D. protein
Which option is correct and why?
|
The correct answer is: protein.
|
When fossil fuel is burned the chemical energy is converted into what?
|
[
"thermal energy",
"natural energy",
"atmospheric energy",
"kinetic energy"
] |
thermal energy
|
Answer the following multiple-choice question.
Question: When fossil fuel is burned the chemical energy is converted into what?
Options:
A. thermal energy
B. natural energy
C. atmospheric energy
D. kinetic energy
Which option is correct and why?
|
The correct answer is: thermal energy.
|
What promotes cell division and are necessary for growing plants in tissue culture?
|
[
"auxins",
"mitochondria",
"polyamines",
"cytokinins"
] |
cytokinins
|
Answer the following multiple-choice question.
Question: What promotes cell division and are necessary for growing plants in tissue culture?
Options:
A. auxins
B. mitochondria
C. polyamines
D. cytokinins
Which option is correct and why?
|
The correct answer is: cytokinins.
|
What term is used to describe how fast a chemical reaction occurs?
|
[
"catalysis",
"velocity",
"response time",
"reaction rate"
] |
reaction rate
|
Answer the following multiple-choice question.
Question: What term is used to describe how fast a chemical reaction occurs?
Options:
A. catalysis
B. velocity
C. response time
D. reaction rate
Which option is correct and why?
|
The correct answer is: reaction rate.
|
What is the opposite of rarefaction zones, where air molecules in waves are loosely packed?
|
[
"molecules zones",
"pressure wave",
"compression zones",
"measurements zones"
] |
compression zones
|
Answer the following multiple-choice question.
Question: What is the opposite of rarefaction zones, where air molecules in waves are loosely packed?
Options:
A. molecules zones
B. pressure wave
C. compression zones
D. measurements zones
Which option is correct and why?
|
The correct answer is: compression zones.
|
what is electricity sometimes used to heat?
|
[
"space",
"hospitals",
"waves",
"direct energy",
"energy",
"Light",
"condensation",
"clouds"
] |
hospitals
|
Answer the following multiple-choice question.
Question: what is electricity sometimes used to heat?
Options:
A. space
B. hospitals
C. waves
D. direct energy
E. energy
F. Light
G. condensation
H. clouds
Which option is correct and why?
|
The correct answer is: hospitals.
|
null | null | null | null | null |
Which part of the body shows does horner's syndrome affect?
|
[
"the mouth",
"the tongue",
"one eye",
"the nose"
] |
one eye
|
Answer the following multiple-choice question.
Question: Which part of the body shows does horner's syndrome affect?
Options:
A. the mouth
B. the tongue
C. one eye
D. the nose
Which option is correct and why?
|
The correct answer is: one eye.
|
What does extreme heat and pressure in a swamp over long periods of time create?
|
[
"harm",
"soils",
"death",
"cracks",
"sweat",
"loss",
"Injury",
"bogs"
] |
bogs
|
Answer the following multiple-choice question.
Question: What does extreme heat and pressure in a swamp over long periods of time create?
Options:
A. harm
B. soils
C. death
D. cracks
E. sweat
F. loss
G. Injury
H. bogs
Which option is correct and why?
|
The correct answer is: bogs.
|
What do earthworms do when a segment breaks off
|
[
"Dies",
"Regrows it",
"Reproduces",
"Sediment",
"root growth",
"migrate",
"Stops growing",
"roots"
] |
Regrows it
|
Answer the following multiple-choice question.
Question: What do earthworms do when a segment breaks off
Options:
A. Dies
B. Regrows it
C. Reproduces
D. Sediment
E. root growth
F. migrate
G. Stops growing
H. roots
Which option is correct and why?
|
The correct answer is: Regrows it.
|
The number of moles of solute in 1 kg of solvent is defined as what?
|
[
"pollenation",
"singularity",
"molarity",
"kilocalorie"
] |
molarity
|
Answer the following multiple-choice question.
Question: The number of moles of solute in 1 kg of solvent is defined as what?
Options:
A. pollenation
B. singularity
C. molarity
D. kilocalorie
Which option is correct and why?
|
The correct answer is: molarity.
|
The celestial object closest to Earth is
|
[
"Mercury and Venus are equally closest",
"the object the Earth orbits",
"the third planet from the Sun",
"the large object that illuminates a night sky"
] |
the large object that illuminates a night sky
|
Answer the following multiple-choice question.
Question: The celestial object closest to Earth is
Options:
A. Mercury and Venus are equally closest
B. the object the Earth orbits
C. the third planet from the Sun
D. the large object that illuminates a night sky
Which option is correct and why?
|
The correct answer is: the large object that illuminates a night sky.
|
A person buys a cheap hammer and it breaks a month later. The person invests in an expensive hammer and
|
[
"it endures",
"died",
"baked it",
"ate it"
] |
it endures
|
Answer the following multiple-choice question.
Question: A person buys a cheap hammer and it breaks a month later. The person invests in an expensive hammer and
Options:
A. it endures
B. died
C. baked it
D. ate it
Which option is correct and why?
|
The correct answer is: it endures.
|
Carbon dioxide molecules consist of a central carbon atom bonded to how many oxygen atoms?
|
[
"one",
"two",
"three",
"four"
] |
two
|
Answer the following multiple-choice question.
Question: Carbon dioxide molecules consist of a central carbon atom bonded to how many oxygen atoms?
Options:
A. one
B. two
C. three
D. four
Which option is correct and why?
|
The correct answer is: two.
|
Microevolution occurs in a population when what frequencies change over time?
|
[
"molecule",
"eukaryote",
"allele",
"antenna"
] |
allele
|
Answer the following multiple-choice question.
Question: Microevolution occurs in a population when what frequencies change over time?
Options:
A. molecule
B. eukaryote
C. allele
D. antenna
Which option is correct and why?
|
The correct answer is: allele.
|
What remains a constant of radioactive substance over time?
|
[
"volatility",
"acidity",
"temperature",
"rate of decay"
] |
rate of decay
|
Answer the following multiple-choice question.
Question: What remains a constant of radioactive substance over time?
Options:
A. volatility
B. acidity
C. temperature
D. rate of decay
Which option is correct and why?
|
The correct answer is: rate of decay.
|
When cell walls relax they
|
[
"migrate",
"slows",
"nektar",
"vibrate",
"sweat",
"widen",
"expand",
"heat"
] |
widen
|
Answer the following multiple-choice question.
Question: When cell walls relax they
Options:
A. migrate
B. slows
C. nektar
D. vibrate
E. sweat
F. widen
G. expand
H. heat
Which option is correct and why?
|
The correct answer is: widen.
|
A seasonal change may be expressed in
|
[
"birds flapping their wings",
"birds leaving a state",
"cows chewing their cud",
"horses being saddled up"
] |
birds leaving a state
|
Answer the following multiple-choice question.
Question: A seasonal change may be expressed in
Options:
A. birds flapping their wings
B. birds leaving a state
C. cows chewing their cud
D. horses being saddled up
Which option is correct and why?
|
The correct answer is: birds leaving a state.
|
What is when rocks are broken down?
|
[
"roof weathering",
"Plant growth is reduced",
"brick weathering",
"Physical weathering",
"remains of prehistoric life",
"at or near the margins",
"home weathering",
"major threat to health"
] |
Physical weathering
|
Answer the following multiple-choice question.
Question: What is when rocks are broken down?
Options:
A. roof weathering
B. Plant growth is reduced
C. brick weathering
D. Physical weathering
E. remains of prehistoric life
F. at or near the margins
G. home weathering
H. major threat to health
Which option is correct and why?
|
The correct answer is: Physical weathering.
|
Some protists absorb nutrients from decaying matter like a what?
|
[
"insects",
"fungus",
"mite",
"plant"
] |
fungus
|
Answer the following multiple-choice question.
Question: Some protists absorb nutrients from decaying matter like a what?
Options:
A. insects
B. fungus
C. mite
D. plant
Which option is correct and why?
|
The correct answer is: fungus.
|
What in the Earth's crust causes earthquakes?
|
[
"heat",
"stress",
"cracks",
"volcanoes",
"erosion",
"waves",
"Wind",
"Movement"
] |
stress
|
Answer the following multiple-choice question.
Question: What in the Earth's crust causes earthquakes?
Options:
A. heat
B. stress
C. cracks
D. volcanoes
E. erosion
F. waves
G. Wind
H. Movement
Which option is correct and why?
|
The correct answer is: stress.
|
If most reptiles have bad eyesight, the ability to smell is what?
|
[
"dangerous",
"lowered",
"improve",
"positive",
"smelled",
"decreased",
"heightened",
"critical organs"
] |
heightened
|
Answer the following multiple-choice question.
Question: If most reptiles have bad eyesight, the ability to smell is what?
Options:
A. dangerous
B. lowered
C. improve
D. positive
E. smelled
F. decreased
G. heightened
H. critical organs
Which option is correct and why?
|
The correct answer is: heightened.
|
What type of fibers are made mostly of protein in living things?
|
[
"liver fibers",
"muscle fibers",
"organ fibers",
"connective tissue fibers"
] |
muscle fibers
|
Answer the following multiple-choice question.
Question: What type of fibers are made mostly of protein in living things?
Options:
A. liver fibers
B. muscle fibers
C. organ fibers
D. connective tissue fibers
Which option is correct and why?
|
The correct answer is: muscle fibers.
|
What are the "code words" of the genetic code?
|
[
"nucleotides",
"lipids",
"codons",
"polymers"
] |
codons
|
Answer the following multiple-choice question.
Question: What are the "code words" of the genetic code?
Options:
A. nucleotides
B. lipids
C. codons
D. polymers
Which option is correct and why?
|
The correct answer is: codons.
|
a scuba diver startles an octopus, and suddenly the water changed color, what happened?
|
[
"it died and released a color",
"it was amused by the diver",
"it was trying to hide from the diver",
"it was thanking the diver"
] |
it was trying to hide from the diver
|
Answer the following multiple-choice question.
Question: a scuba diver startles an octopus, and suddenly the water changed color, what happened?
Options:
A. it died and released a color
B. it was amused by the diver
C. it was trying to hide from the diver
D. it was thanking the diver
Which option is correct and why?
|
The correct answer is: it was trying to hide from the diver.
|
what do plants lose to the atmosphere?
|
[
"oxygen",
"gas",
"rain",
"sugar",
"heat",
"water",
"energy",
"Energy."
] |
water
|
Answer the following multiple-choice question.
Question: what do plants lose to the atmosphere?
Options:
A. oxygen
B. gas
C. rain
D. sugar
E. heat
F. water
G. energy
H. Energy.
Which option is correct and why?
|
The correct answer is: water.
|
Sandbars are a part of most seas because there are
|
[
"waves which adjust silt",
"lots of stones in seas",
"places where fish eat",
"sand that needs to be piled"
] |
waves which adjust silt
|
Answer the following multiple-choice question.
Question: Sandbars are a part of most seas because there are
Options:
A. waves which adjust silt
B. lots of stones in seas
C. places where fish eat
D. sand that needs to be piled
Which option is correct and why?
|
The correct answer is: waves which adjust silt.
|
what does meiosis produce?
|
[
"ova and spermatozoa",
"rapid expansion",
"Plant reproduction",
"Most plants",
"h2o",
"less cells",
"checks and balances",
"members of their own species"
] |
ova and spermatozoa
|
Answer the following multiple-choice question.
Question: what does meiosis produce?
Options:
A. ova and spermatozoa
B. rapid expansion
C. Plant reproduction
D. Most plants
E. h2o
F. less cells
G. checks and balances
H. members of their own species
Which option is correct and why?
|
The correct answer is: ova and spermatozoa.
|
What causes a gas to condense?
|
[
"Energy.",
"kinetic energy",
"Water expanding",
"It gets heated up",
"It expands",
"circulatory system",
"reduced heat",
"less water"
] |
reduced heat
|
Answer the following multiple-choice question.
Question: What causes a gas to condense?
Options:
A. Energy.
B. kinetic energy
C. Water expanding
D. It gets heated up
E. It expands
F. circulatory system
G. reduced heat
H. less water
Which option is correct and why?
|
The correct answer is: reduced heat.
|
A way to conserve something is to
|
[
"use it up",
"use it sparsely",
"use it quickly",
"finish it off"
] |
use it sparsely
|
Answer the following multiple-choice question.
Question: A way to conserve something is to
Options:
A. use it up
B. use it sparsely
C. use it quickly
D. finish it off
Which option is correct and why?
|
The correct answer is: use it sparsely.
|
Which two objects are likely to be magnetic?
|
[
"a cell phone and a coffee mug",
"a credit card and the register",
"a cat and a dog",
"a tree and a power line"
] |
a credit card and the register
|
Answer the following multiple-choice question.
Question: Which two objects are likely to be magnetic?
Options:
A. a cell phone and a coffee mug
B. a credit card and the register
C. a cat and a dog
D. a tree and a power line
Which option is correct and why?
|
The correct answer is: a credit card and the register.
|
Chicken and potatoes can be cooked in a pan on what?
|
[
"a paper towel",
"on another chicken",
"a stove",
"in the freezer",
"less water",
"heat",
"plates",
"loose soil"
] |
a stove
|
Answer the following multiple-choice question.
Question: Chicken and potatoes can be cooked in a pan on what?
Options:
A. a paper towel
B. on another chicken
C. a stove
D. in the freezer
E. less water
F. heat
G. plates
H. loose soil
Which option is correct and why?
|
The correct answer is: a stove.
|
A decrease in trees may be attributed to
|
[
"dendrophilia",
"hiking enthusiasts",
"increased chainsaw sales",
"nature photographers"
] |
increased chainsaw sales
|
Answer the following multiple-choice question.
Question: A decrease in trees may be attributed to
Options:
A. dendrophilia
B. hiking enthusiasts
C. increased chainsaw sales
D. nature photographers
Which option is correct and why?
|
The correct answer is: increased chainsaw sales.
|
What natural disaster is california most linked with?
|
[
"earthquakes",
"hurricanes",
"fires",
"volcanoes"
] |
earthquakes
|
Answer the following multiple-choice question.
Question: What natural disaster is california most linked with?
Options:
A. earthquakes
B. hurricanes
C. fires
D. volcanoes
Which option is correct and why?
|
The correct answer is: earthquakes.
|
The decline of speed is associated with what?
|
[
"an object gaining energy",
"a lot of human deaths",
"decrease stamina",
"hyperthyroidism",
"an object losing energy",
"an object gaining momentum",
"body temperature reduces",
"an object going faster"
] |
an object losing energy
|
Answer the following multiple-choice question.
Question: The decline of speed is associated with what?
Options:
A. an object gaining energy
B. a lot of human deaths
C. decrease stamina
D. hyperthyroidism
E. an object losing energy
F. an object gaining momentum
G. body temperature reduces
H. an object going faster
Which option is correct and why?
|
The correct answer is: an object losing energy.
|
Lisa was hiking in a rocky area and in a rock, she saw what looked like footprints made by a bird. But weirdly, they were in a rock. Where did they come from?
|
[
"The footprints were originally in mud or peat, but after a lot of time, the substance had been changed into rock",
"The rock was actually an asteroid",
"a very heavy bird made imprints in the rock.",
"a spaceship used a laser to make the etches in the rock"
] |
The footprints were originally in mud or peat, but after a lot of time, the substance had been changed into rock
|
Answer the following multiple-choice question.
Question: Lisa was hiking in a rocky area and in a rock, she saw what looked like footprints made by a bird. But weirdly, they were in a rock. Where did they come from?
Options:
A. The footprints were originally in mud or peat, but after a lot of time, the substance had been changed into rock
B. The rock was actually an asteroid
C. a very heavy bird made imprints in the rock.
D. a spaceship used a laser to make the etches in the rock
Which option is correct and why?
|
The correct answer is: The footprints were originally in mud or peat, but after a lot of time, the substance had been changed into rock.
|
What may be stored in sedimentary rock for millions of years.
|
[
"Sand castles",
"Chemical energy",
"heat energy",
"Millions of dollars.",
"A fuel source.",
"Energy.",
"In sediment",
"Stored animal fur."
] |
A fuel source.
|
Answer the following multiple-choice question.
Question: What may be stored in sedimentary rock for millions of years.
Options:
A. Sand castles
B. Chemical energy
C. heat energy
D. Millions of dollars.
E. A fuel source.
F. Energy.
G. In sediment
H. Stored animal fur.
Which option is correct and why?
|
The correct answer is: A fuel source..
|
What organelles that are found in the cells of mosses.
|
[
"chloroplasts",
"epidermal",
"sensory neurons",
"an organism's body",
"more abundant",
"Epidermis",
"produce light",
"it needs them"
] |
chloroplasts
|
Answer the following multiple-choice question.
Question: What organelles that are found in the cells of mosses.
Options:
A. chloroplasts
B. epidermal
C. sensory neurons
D. an organism's body
E. more abundant
F. Epidermis
G. produce light
H. it needs them
Which option is correct and why?
|
The correct answer is: chloroplasts.
|
Plants require
|
[
"oxygen",
"H2O",
"Fe",
"clouds"
] |
H2O
|
Answer the following multiple-choice question.
Question: Plants require
Options:
A. oxygen
B. H2O
C. Fe
D. clouds
Which option is correct and why?
|
The correct answer is: H2O.
|
A flower's colors come from what part of the plant?
|
[
"vacuole",
"Internode",
"Petiole",
"glycogen"
] |
vacuole
|
Answer the following multiple-choice question.
Question: A flower's colors come from what part of the plant?
Options:
A. vacuole
B. Internode
C. Petiole
D. glycogen
Which option is correct and why?
|
The correct answer is: vacuole.
|
Flowers attract
|
[
"bees",
"parasites",
"electrons",
"insects",
"pollen",
"plant life",
"carbon",
"honeybees"
] |
insects
|
Answer the following multiple-choice question.
Question: Flowers attract
Options:
A. bees
B. parasites
C. electrons
D. insects
E. pollen
F. plant life
G. carbon
H. honeybees
Which option is correct and why?
|
The correct answer is: insects.
|
A girl with a burn scar on her arm was most likely
|
[
"in a swimming pool",
"in a safe space",
"near a running kiln",
"protected from any injury"
] |
near a running kiln
|
Answer the following multiple-choice question.
Question: A girl with a burn scar on her arm was most likely
Options:
A. in a swimming pool
B. in a safe space
C. near a running kiln
D. protected from any injury
Which option is correct and why?
|
The correct answer is: near a running kiln.
|
null | null | null | null | null |
Mammals are synapsids, meaning they have a single opening in what structure?
|
[
"spine",
"hip",
"heart",
"skull"
] |
skull
|
Answer the following multiple-choice question.
Question: Mammals are synapsids, meaning they have a single opening in what structure?
Options:
A. spine
B. hip
C. heart
D. skull
Which option is correct and why?
|
The correct answer is: skull.
|
What do the cells in the front of a volvox typically develop to help swim towards light?
|
[
"sunspots",
"tumors",
"eyespots",
"vertebrates"
] |
eyespots
|
Answer the following multiple-choice question.
Question: What do the cells in the front of a volvox typically develop to help swim towards light?
Options:
A. sunspots
B. tumors
C. eyespots
D. vertebrates
Which option is correct and why?
|
The correct answer is: eyespots.
|
What are small organelles and are the site of protein synthesis called.
|
[
"chloroplasts",
"chromosomes",
"ribosomes",
"chromosomes"
] |
ribosomes
|
Answer the following multiple-choice question.
Question: What are small organelles and are the site of protein synthesis called.
Options:
A. chloroplasts
B. chromosomes
C. ribosomes
D. chromosomes
Which option is correct and why?
|
The correct answer is: ribosomes.
|
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