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|---|---|---|---|---|---|---|---|
null | null | null | null | null | null | null | The homologous chromosome pairs separate, but the individual chromosomes, each consisting of two sister chromatids, remain intact. |
Mercury_7009485 | An atom will always have | {
"label": [
"A",
"B",
"C",
"D"
],
"text": [
"a single, negatively-charged nucleus.",
"equal numbers of protons and electrons.",
"\"shared\" electrons from another atom.",
"a stable number of charged neutrons."
]
} | B | Question: An atom will always have
(A) a single, negatively-charged nucleus.
(B) equal numbers of protons and electrons.
(C) "shared" electrons from another atom.
(D) a stable number of charged neutrons.
| Answer: (B) equal numbers of protons and electrons. | Answer: (C) "shared" electrons from another atom. | Question: An atom will always have
(A) a single, negatively-charged nucleus.
(B) equal numbers of protons and electrons.
(C) "shared" electrons from another atom.
(D) a stable number of charged neutrons.
Answer: (B) equal numbers of protons and electrons. |
null | null | null | null | null | null | null | The decrease in the number of amphibians is an indicator of how gravely affected the ecosystem is. |
null | null | null | null | null | null | null | Question: Algae oil is more concentrated in which essential nutrients?
(A) vitamin C and iron
(B) omega-3s and DHA
(C) calcium and vitamin D
(D) carbohydrates and proteins
Answer: (B) omega-3s and DHA |
null | null | null | null | null | null | null | The freshly created primary spermatocytes (I) now enter into the first meiosis. |
null | null | null | null | null | null | null | For this reason the plants that live in these soils have evolved into carnivorous plants that capture and digest insects as a means of obtaining nitrates. |
null | null | null | null | null | null | null | The leaves may be spirally arranged or grouped in four vertical rows along the shoot. |
null | null | null | null | null | null | null | Most peccaries reach sexual maturity. |
null | null | null | null | null | null | null | Their dietary needs are fulfilled with both dry food and wet food. |
Mercury_7041020 | Which organisms form the base of all ecosystems? | {
"label": [
"A",
"B",
"C",
"D"
],
"text": [
"scavengers",
"producers",
"consumers",
"decomposers"
]
} | B | Question: Which organisms form the base of all ecosystems?
(A) scavengers
(B) producers
(C) consumers
(D) decomposers
| Answer: (B) producers | Answer: (A) scavengers | Question: Which organisms form the base of all ecosystems?
(A) scavengers
(B) producers
(C) consumers
(D) decomposers
Answer: (B) producers |
Mercury_7030048 | If a student gets a chemical splashed into an eye, what is the most appropriate first action to be taken? | {
"label": [
"A",
"B",
"C",
"D"
],
"text": [
"wipe it with a paper towel",
"call 911 for emergency services",
"have someone go get the school nurse",
"flush the eye with water at an eyewash station"
]
} | D | Question: If a student gets a chemical splashed into an eye, what is the most appropriate first action to be taken?
(A) wipe it with a paper towel
(B) call 911 for emergency services
(C) have someone go get the school nurse
(D) flush the eye with water at an eyewash station
| Answer: (D) flush the eye with water at an eyewash station | Answer: (C) have someone go get the school nurse | Question: If a student gets a chemical splashed into an eye, what is the most appropriate first action to be taken?
(A) wipe it with a paper towel
(B) call 911 for emergency services
(C) have someone go get the school nurse
(D) flush the eye with water at an eyewash station
Answer: (D) flush the eye with water at an eyewash station |
null | null | null | null | null | null | null | in angiosperms, seeds develop in the |
null | null | null | null | null | null | null | eg: A hawk eats a snake, which has eaten a frog, which has eaten a grasshopper, which has eaten grass. |
Mercury_SC_415368 | A dragonfly develops through incomplete metamorphosis. Which stages does the dragonfly's life cycle include? | {
"label": [
"A",
"B",
"C",
"D"
],
"text": [
"egg and larva",
"egg and nymph",
"larva and pupa",
"larva and nymph"
]
} | B | Question: A dragonfly develops through incomplete metamorphosis. Which stages does the dragonfly's life cycle include?
(A) egg and larva
(B) egg and nymph
(C) larva and pupa
(D) larva and nymph
| Answer: (B) egg and nymph | Answer: (D) larva and nymph | Question: A dragonfly develops through incomplete metamorphosis. Which stages does the dragonfly's life cycle include?
(A) egg and larva
(B) egg and nymph
(C) larva and pupa
(D) larva and nymph
Answer: (B) egg and nymph |
Mercury_7044118 | What will be the most likely result for some species of animals with the continued burning of rain forests in Africa? | {
"label": [
"A",
"B",
"C",
"D"
],
"text": [
"soil erosion",
"destruction of their habitats",
"improved nutrients in the soil",
"more grasses as a result of burning"
]
} | B | Question: What will be the most likely result for some species of animals with the continued burning of rain forests in Africa?
(A) soil erosion
(B) destruction of their habitats
(C) improved nutrients in the soil
(D) more grasses as a result of burning
| Answer: (B) destruction of their habitats | Answer: (D) more grasses as a result of burning | Question: What will be the most likely result for some species of animals with the continued burning of rain forests in Africa?
(A) soil erosion
(B) destruction of their habitats
(C) improved nutrients in the soil
(D) more grasses as a result of burning
Answer: (B) destruction of their habitats |
null | null | null | null | null | null | null | It is noteworthy that such local adaptation appears to have occurred in this population in spite of its small size, low genetic variation and high genetic load [ 3 ]. |
null | null | null | null | null | null | null | Question: What is being suggested?
(A) A new litter box
(B) A new brand of cat food
(C) A new toy for cats
(D) A new cat bed
Answer: (A) A new litter box |
null | null | null | null | null | null | null | The pulmonary artery carries blood containing carbon dioxide to the air sacs, where the gas moves from the blood to the air, according to the NHLBI. |
Mercury_SC_413305 | How does ice change the shape of rocks? | {
"label": [
"A",
"B",
"C",
"D"
],
"text": [
"It dissolves the rocks by pooling on surfaces.",
"It breaks the rocks by expanding in openings.",
"It smooths the rocks by colliding with them.",
"It moves the rocks by pressing on them."
]
} | B | Question: How does ice change the shape of rocks?
(A) It dissolves the rocks by pooling on surfaces.
(B) It breaks the rocks by expanding in openings.
(C) It smooths the rocks by colliding with them.
(D) It moves the rocks by pressing on them.
| Answer: (B) It breaks the rocks by expanding in openings. | Answer: (C) It smooths the rocks by colliding with them. | Question: How does ice change the shape of rocks?
(A) It dissolves the rocks by pooling on surfaces.
(B) It breaks the rocks by expanding in openings.
(C) It smooths the rocks by colliding with them.
(D) It moves the rocks by pressing on them.
Answer: (B) It breaks the rocks by expanding in openings. |
null | null | null | null | null | null | null | Question: What qualities does the speaker appreciate about the mentioned item?
(A) strong and rigid
(B) soft and fluffy
(C) stretchy and breathable
(D) smooth and shiny
Answer: (C) stretchy and breathable |
NCEOGA_2013_5_31 | Which best describes a characteristic of the jet stream? | {
"label": [
"A",
"B",
"C",
"D"
],
"text": [
"It forms a boundary between a cold air mass and a warm air mass.",
"It creates the high winds around the eye of a hurricane.",
"It forces the hot air along the equator to rise to areas in North America.",
"It causes high pressure air masses to rotate clockwise."
]
} | A | Question: Which best describes a characteristic of the jet stream?
(A) It forms a boundary between a cold air mass and a warm air mass.
(B) It creates the high winds around the eye of a hurricane.
(C) It forces the hot air along the equator to rise to areas in North America.
(D) It causes high pressure air masses to rotate clockwise.
| Answer: (A) It forms a boundary between a cold air mass and a warm air mass. | Answer: (B) It creates the high winds around the eye of a hurricane. | Question: Which best describes a characteristic of the jet stream?
(A) It forms a boundary between a cold air mass and a warm air mass.
(B) It creates the high winds around the eye of a hurricane.
(C) It forces the hot air along the equator to rise to areas in North America.
(D) It causes high pressure air masses to rotate clockwise.
Answer: (A) It forms a boundary between a cold air mass and a warm air mass. |
Mercury_7108115 | Rich beds of marine fossils have been found in Florida. By dating these fossils, scientists can best determine | {
"label": [
"A",
"B",
"C",
"D"
],
"text": [
"when Florida collided with the North American continent.",
"the date when organisms moved onto dry land.",
"the period during which Florida was covered in water.",
"when the atmosphere of Earth was more humid than it is today."
]
} | C | Question: Rich beds of marine fossils have been found in Florida. By dating these fossils, scientists can best determine
(A) when Florida collided with the North American continent.
(B) the date when organisms moved onto dry land.
(C) the period during which Florida was covered in water.
(D) when the atmosphere of Earth was more humid than it is today.
| Answer: (C) the period during which Florida was covered in water. | Answer: (A) when Florida collided with the North American continent. | Question: Rich beds of marine fossils have been found in Florida. By dating these fossils, scientists can best determine
(A) when Florida collided with the North American continent.
(B) the date when organisms moved onto dry land.
(C) the period during which Florida was covered in water.
(D) when the atmosphere of Earth was more humid than it is today.
Answer: (C) the period during which Florida was covered in water. |
null | null | null | null | null | null | null | There are a number of differences, most notably in how the embryo develops. |
VASoL_2007_3_22 | Barry collected four different rocks. The rock with the GREATEST mass will feel the ___. | {
"label": [
"A",
"B",
"C",
"D"
],
"text": [
"heaviest",
"smoothest",
"sharpest",
"hardest"
]
} | A | Question: Barry collected four different rocks. The rock with the GREATEST mass will feel the ___.
(A) heaviest
(B) smoothest
(C) sharpest
(D) hardest
| Answer: (A) heaviest | Answer: (D) hardest | Question: Barry collected four different rocks. The rock with the GREATEST mass will feel the ___.
(A) heaviest
(B) smoothest
(C) sharpest
(D) hardest
Answer: (A) heaviest |
null | null | null | null | null | null | null | Those traits that the environment can change. |
null | null | null | null | null | null | null | Most products are produced by activities. |
NCEOGA_2013_5_12 | Which is an example of a single-celled organism? | {
"label": [
"A",
"B",
"C",
"D"
],
"text": [
"amoeba",
"insect",
"fish",
"worm"
]
} | A | Question: Which is an example of a single-celled organism?
(A) amoeba
(B) insect
(C) fish
(D) worm
| Answer: (A) amoeba | Answer: (D) worm | Question: Which is an example of a single-celled organism?
(A) amoeba
(B) insect
(C) fish
(D) worm
Answer: (A) amoeba |
NYSEDREGENTS_2005_4_1 | Which example describes an organism taking in nutrients? | {
"label": [
"A",
"B",
"C",
"D"
],
"text": [
"a dog burying a bone",
"a girl eating an apple",
"an insect crawling on a leaf",
"a boy planting tomatoes in a garden"
]
} | B | Question: Which example describes an organism taking in nutrients?
(A) a dog burying a bone
(B) a girl eating an apple
(C) an insect crawling on a leaf
(D) a boy planting tomatoes in a garden
| Answer: (B) a girl eating an apple | Answer: (D) a boy planting tomatoes in a garden | Question: Which example describes an organism taking in nutrients?
(A) a dog burying a bone
(B) a girl eating an apple
(C) an insect crawling on a leaf
(D) a boy planting tomatoes in a garden
Answer: (B) a girl eating an apple |
Mercury_7183435 | Living organisms require energy for biological processes. Chemical energy in a plant cell is | {
"label": [
"A",
"B",
"C",
"D"
],
"text": [
"produced in vacuoles.",
"converted from solar energy.",
"developed by centrioles.",
"stored as kinetic energy."
]
} | B | Question: Living organisms require energy for biological processes. Chemical energy in a plant cell is
(A) produced in vacuoles.
(B) converted from solar energy.
(C) developed by centrioles.
(D) stored as kinetic energy.
| Answer: (B) converted from solar energy. | Answer: (A) produced in vacuoles. | Question: Living organisms require energy for biological processes. Chemical energy in a plant cell is
(A) produced in vacuoles.
(B) converted from solar energy.
(C) developed by centrioles.
(D) stored as kinetic energy.
Answer: (B) converted from solar energy. |
NYSEDREGENTS_2004_8_1 | The items listed below were found in a science classroom. * a heart made of plastic with many of its parts labeled * clay formed to look like Earth and other planets * a giant plastic plant cell with removable cell parts These items are all examples of | {
"label": [
"1",
"2",
"3",
"4"
],
"text": [
"models",
"experiments",
"variables",
"controls"
]
} | 1 | Question: The items listed below were found in a science classroom. * a heart made of plastic with many of its parts labeled * clay formed to look like Earth and other planets * a giant plastic plant cell with removable cell parts These items are all examples of
(1) models
(2) experiments
(3) variables
(4) controls
| Answer: (1) models | Answer: (3) variables | Question: The items listed below were found in a science classroom. * a heart made of plastic with many of its parts labeled * clay formed to look like Earth and other planets * a giant plastic plant cell with removable cell parts These items are all examples of
(1) models
(2) experiments
(3) variables
(4) controls
Answer: (1) models |
null | null | null | null | null | null | null | The lines on a phylogeny that trace the pathway of evolutionary lineages through time. |
null | null | null | null | null | null | null | Question: What started to occur regularly from Perboewatan beginning May 20, 1883?
(A) lava flow
(B) steam venting
(C) rock slides
(D) volcanic ash
Answer: (B) steam venting |
Mercury_7068793 | Which statement is an opinion? | {
"label": [
"A",
"B",
"C",
"D"
],
"text": [
"Chemistry and Physics are major branches of science.",
"Life Science is a subject filled with interesting information.",
"Geology and Oceanography are subjects in Earth Science.",
"Biology is a science that studies complex organisms."
]
} | B | Question: Which statement is an opinion?
(A) Chemistry and Physics are major branches of science.
(B) Life Science is a subject filled with interesting information.
(C) Geology and Oceanography are subjects in Earth Science.
(D) Biology is a science that studies complex organisms.
| Answer: (B) Life Science is a subject filled with interesting information. | Answer: (D) Biology is a science that studies complex organisms. | Question: Which statement is an opinion?
(A) Chemistry and Physics are major branches of science.
(B) Life Science is a subject filled with interesting information.
(C) Geology and Oceanography are subjects in Earth Science.
(D) Biology is a science that studies complex organisms.
Answer: (B) Life Science is a subject filled with interesting information. |
null | null | null | null | null | null | null | Most birds prey on domestic animals. |
null | null | null | null | null | null | null | Some events affect areas. |
Mercury_7128275 | Nerve cells transmitting messages to the body best demonstrate which primary function? | {
"label": [
"A",
"B",
"C",
"D"
],
"text": [
"the transfer of energy",
"the exchange of gases",
"the elimination of waste",
"the absorption of nutrients"
]
} | A | Question: Nerve cells transmitting messages to the body best demonstrate which primary function?
(A) the transfer of energy
(B) the exchange of gases
(C) the elimination of waste
(D) the absorption of nutrients
| Answer: (A) the transfer of energy | Answer: (C) the elimination of waste | Question: Nerve cells transmitting messages to the body best demonstrate which primary function?
(A) the transfer of energy
(B) the exchange of gases
(C) the elimination of waste
(D) the absorption of nutrients
Answer: (A) the transfer of energy |
Mercury_7011095 | Which physical property is important to have in a material used in cookware? | {
"label": [
"A",
"B",
"C",
"D"
],
"text": [
"poor conductor of heat",
"good conductor of heat",
"low flexibility",
"high flexibility"
]
} | B | Question: Which physical property is important to have in a material used in cookware?
(A) poor conductor of heat
(B) good conductor of heat
(C) low flexibility
(D) high flexibility
| Answer: (B) good conductor of heat | Answer: (A) poor conductor of heat | Question: Which physical property is important to have in a material used in cookware?
(A) poor conductor of heat
(B) good conductor of heat
(C) low flexibility
(D) high flexibility
Answer: (B) good conductor of heat |
null | null | null | null | null | null | null | Some predation theories guide observations. |
Mercury_7269080 | Which model best illustrates the wave property that enables scientists to explore Earth's interior using seismic waves? | {
"label": [
"A",
"B",
"C",
"D"
],
"text": [
"shining a light on rock in a bowl",
"shining a light through a prism",
"shining a light through a periscope",
"shining a light on a sundial"
]
} | B | Question: Which model best illustrates the wave property that enables scientists to explore Earth's interior using seismic waves?
(A) shining a light on rock in a bowl
(B) shining a light through a prism
(C) shining a light through a periscope
(D) shining a light on a sundial
| Answer: (B) shining a light through a prism | Answer: (A) shining a light on rock in a bowl | Question: Which model best illustrates the wave property that enables scientists to explore Earth's interior using seismic waves?
(A) shining a light on rock in a bowl
(B) shining a light through a prism
(C) shining a light through a periscope
(D) shining a light on a sundial
Answer: (B) shining a light through a prism |
null | null | null | null | null | null | null | Some problems are experienced by gardeners. |
null | null | null | null | null | null | null | It makes more leaves and stems. |
CSZ10336 | Peach trees have sweet-smelling blossoms and produce rich fruit. What is the main purpose of the flowers of a peach tree? | {
"label": [
"A",
"B",
"C",
"D"
],
"text": [
"to attract bees for pollination",
"to create flower arrangements",
"to protect the tree from disease",
"to feed migratory birds"
]
} | A | Question: Peach trees have sweet-smelling blossoms and produce rich fruit. What is the main purpose of the flowers of a peach tree?
(A) to attract bees for pollination
(B) to create flower arrangements
(C) to protect the tree from disease
(D) to feed migratory birds
| Answer: (A) to attract bees for pollination | Answer: (C) to protect the tree from disease | Question: Peach trees have sweet-smelling blossoms and produce rich fruit. What is the main purpose of the flowers of a peach tree?
(A) to attract bees for pollination
(B) to create flower arrangements
(C) to protect the tree from disease
(D) to feed migratory birds
Answer: (A) to attract bees for pollination |
NYSEDREGENTS_2009_4_19 | Since green plants make their own food, they are called | {
"label": [
"A",
"B",
"C",
"D"
],
"text": [
"predators",
"prey",
"decomposers",
"producers"
]
} | D | Question: Since green plants make their own food, they are called
(A) predators
(B) prey
(C) decomposers
(D) producers
| Answer: (D) producers | Answer: (B) prey | Question: Since green plants make their own food, they are called
(A) predators
(B) prey
(C) decomposers
(D) producers
Answer: (D) producers |
null | null | null | null | null | null | null | The pattern indicates a living organism is involved, as does the fact that more plants are showing symptoms. |
Mercury_7270375 | Stem cells are cells that can differentiate into many different kinds of cells. Scientists have discovered that the environment supporting the cells influences stem-cell differentiation. For example, stem cells grown on strong, flexible surfaces became muscle cells. What most likely happened to stem cells grown on a hard, rigid surface? | {
"label": [
"A",
"B",
"C",
"D"
],
"text": [
"They became nerve cells.",
"They became red blood cells.",
"They became bone cells.",
"They became skin cells."
]
} | C | Question: Stem cells are cells that can differentiate into many different kinds of cells. Scientists have discovered that the environment supporting the cells influences stem-cell differentiation. For example, stem cells grown on strong, flexible surfaces became muscle cells. What most likely happened to stem cells grown on a hard, rigid surface?
(A) They became nerve cells.
(B) They became red blood cells.
(C) They became bone cells.
(D) They became skin cells.
| Answer: (C) They became bone cells. | Answer: (B) They became red blood cells. | Question: Stem cells are cells that can differentiate into many different kinds of cells. Scientists have discovered that the environment supporting the cells influences stem-cell differentiation. For example, stem cells grown on strong, flexible surfaces became muscle cells. What most likely happened to stem cells grown on a hard, rigid surface?
(A) They became nerve cells.
(B) They became red blood cells.
(C) They became bone cells.
(D) They became skin cells.
Answer: (C) They became bone cells. |
TAKS_2009_5_38 | Which of these mixtures would be easiest to separate? | {
"label": [
"A",
"B",
"C",
"D"
],
"text": [
"Fruit salad",
"Powdered lemonade",
"Hot chocolate",
"Instant pudding"
]
} | A | Question: Which of these mixtures would be easiest to separate?
(A) Fruit salad
(B) Powdered lemonade
(C) Hot chocolate
(D) Instant pudding
| Answer: (A) Fruit salad | Answer: (D) Instant pudding | Question: Which of these mixtures would be easiest to separate?
(A) Fruit salad
(B) Powdered lemonade
(C) Hot chocolate
(D) Instant pudding
Answer: (A) Fruit salad |
null | null | null | null | null | null | null | Some cones produce trees. |
null | null | null | null | null | null | null | Some important mechanisms contribute to excretion. |
null | null | null | null | null | null | null | It feeds on earthworms and larvae. |
null | null | null | null | null | null | null | Some patterns relate to differentiations. |
Mercury_7014858 | Sugar is added to water and the mixture is stirred. Which observation is evidence that the sugar dissolved in the water? | {
"label": [
"A",
"B",
"C",
"D"
],
"text": [
"Less sugar is visible.",
"The water is cloudy.",
"The sugar turned into crystals.",
"Bubbles formed in the water."
]
} | A | Question: Sugar is added to water and the mixture is stirred. Which observation is evidence that the sugar dissolved in the water?
(A) Less sugar is visible.
(B) The water is cloudy.
(C) The sugar turned into crystals.
(D) Bubbles formed in the water.
| Answer: (A) Less sugar is visible. | Answer: (C) The sugar turned into crystals. | Question: Sugar is added to water and the mixture is stirred. Which observation is evidence that the sugar dissolved in the water?
(A) Less sugar is visible.
(B) The water is cloudy.
(C) The sugar turned into crystals.
(D) Bubbles formed in the water.
Answer: (A) Less sugar is visible. |
TIMSS_2003_8_pg86 | The fossils that are found in the oldest layers of sedimentary rock were formed which types of organisms? | {
"label": [
"A",
"B",
"C",
"D"
],
"text": [
"only organisms that lived in the sea",
"only organisms that lived on land",
"only organisms that lived in the air",
"organisms that lived on the land, in the sea and in the air"
]
} | A | Question: The fossils that are found in the oldest layers of sedimentary rock were formed which types of organisms?
(A) only organisms that lived in the sea
(B) only organisms that lived on land
(C) only organisms that lived in the air
(D) organisms that lived on the land, in the sea and in the air
| Answer: (A) only organisms that lived in the sea | Answer: (D) organisms that lived on the land, in the sea and in the air | Question: The fossils that are found in the oldest layers of sedimentary rock were formed which types of organisms?
(A) only organisms that lived in the sea
(B) only organisms that lived on land
(C) only organisms that lived in the air
(D) organisms that lived on the land, in the sea and in the air
Answer: (A) only organisms that lived in the sea |
MDSA_2010_8_34 | Mammals must eliminate waste products that their bodies produce. Which organ helps mammals eliminate bodily waste? | {
"label": [
"A",
"B",
"C",
"D"
],
"text": [
"appendix",
"kidney",
"pancreas",
"stomach"
]
} | B | Question: Mammals must eliminate waste products that their bodies produce. Which organ helps mammals eliminate bodily waste?
(A) appendix
(B) kidney
(C) pancreas
(D) stomach
| Answer: (B) kidney | Answer: (D) stomach | Question: Mammals must eliminate waste products that their bodies produce. Which organ helps mammals eliminate bodily waste?
(A) appendix
(B) kidney
(C) pancreas
(D) stomach
Answer: (B) kidney |
AIMS_2008_4_12 | Western coral snakes have a striped color pattern and are poisonous. Arizona mountain king snakes look like western coral snakes but are not poisonous. The color pattern of the Arizona mountain king snake is an example of | {
"label": [
"A",
"B",
"C",
"D"
],
"text": [
"camouflage.",
"mimicry.",
"mutualism.",
"parasitism."
]
} | B | Question: Western coral snakes have a striped color pattern and are poisonous. Arizona mountain king snakes look like western coral snakes but are not poisonous. The color pattern of the Arizona mountain king snake is an example of
(A) camouflage.
(B) mimicry.
(C) mutualism.
(D) parasitism.
| Answer: (B) mimicry. | Answer: (C) mutualism. | Question: Western coral snakes have a striped color pattern and are poisonous. Arizona mountain king snakes look like western coral snakes but are not poisonous. The color pattern of the Arizona mountain king snake is an example of
(A) camouflage.
(B) mimicry.
(C) mutualism.
(D) parasitism.
Answer: (B) mimicry. |
Mercury_SC_400527 | Most types of cacti survive the dry conditions of a desert because they hold water in their stems. This is an example of | {
"label": [
"A",
"B",
"C",
"D"
],
"text": [
"a niche.",
"a species.",
"an adaptation.",
"an ecosystem."
]
} | C | Question: Most types of cacti survive the dry conditions of a desert because they hold water in their stems. This is an example of
(A) a niche.
(B) a species.
(C) an adaptation.
(D) an ecosystem.
| Answer: (C) an adaptation. | Answer: (B) a species. | Question: Most types of cacti survive the dry conditions of a desert because they hold water in their stems. This is an example of
(A) a niche.
(B) a species.
(C) an adaptation.
(D) an ecosystem.
Answer: (C) an adaptation. |
null | null | null | null | null | null | null | The marine mammals have different means of communication than terrestrial mammals. |
null | null | null | null | null | null | null | The leaves of these plants look similar to bay leaves. |
Mercury_405946 | A family installs a new heating system in their home. Which is the most desirable result of the new heating system? | {
"label": [
"A",
"B",
"C",
"D"
],
"text": [
"producing more noise pollution",
"decreasing the amount of energy used",
"increasing the use of natural resources",
"increasing the time it takes to heat the home"
]
} | B | Question: A family installs a new heating system in their home. Which is the most desirable result of the new heating system?
(A) producing more noise pollution
(B) decreasing the amount of energy used
(C) increasing the use of natural resources
(D) increasing the time it takes to heat the home
| Answer: (B) decreasing the amount of energy used | Answer: (D) increasing the time it takes to heat the home | Question: A family installs a new heating system in their home. Which is the most desirable result of the new heating system?
(A) producing more noise pollution
(B) decreasing the amount of energy used
(C) increasing the use of natural resources
(D) increasing the time it takes to heat the home
Answer: (B) decreasing the amount of energy used |
null | null | null | null | null | null | null | Mammals evolved from primitive reptiles called Therapsids about 250 million years ago. |
Mercury_7210928 | Which resource, abundant in Nevada, is nonrenewable? | {
"label": [
"A",
"B",
"C",
"D"
],
"text": [
"copper",
"wind",
"sunlight",
"wood"
]
} | A | Question: Which resource, abundant in Nevada, is nonrenewable?
(A) copper
(B) wind
(C) sunlight
(D) wood
| Answer: (A) copper | Answer: (B) wind | Question: Which resource, abundant in Nevada, is nonrenewable?
(A) copper
(B) wind
(C) sunlight
(D) wood
Answer: (A) copper |
null | null | null | null | null | null | null | Most materials have texture. |
null | null | null | null | null | null | null | Ova and spermatozooids are sometimes included among the free cells. |
null | null | null | null | null | null | null | cells most of the DNA is contained in a |
Mercury_SC_400865 | What event happens in a daily cycle? | {
"label": [
"A",
"B",
"C",
"D"
],
"text": [
"cliffs erode",
"rivers flood",
"volcanoes erupt",
"high and low tides"
]
} | D | Question: What event happens in a daily cycle?
(A) cliffs erode
(B) rivers flood
(C) volcanoes erupt
(D) high and low tides
| Answer: (D) high and low tides | Answer: (A) cliffs erode | Question: What event happens in a daily cycle?
(A) cliffs erode
(B) rivers flood
(C) volcanoes erupt
(D) high and low tides
Answer: (D) high and low tides |
Mercury_7193095 | In large industrial cities, the emissions from fossil fuels cause the atmosphere to change. Which process allows the atmosphere to change? | {
"label": [
"A",
"B",
"C",
"D"
],
"text": [
"increased inorganic matter in soil",
"increased use of fertilizers on crops",
"increased buildup of greenhouse gases",
"increased rainfall rates near power plants"
]
} | C | Question: In large industrial cities, the emissions from fossil fuels cause the atmosphere to change. Which process allows the atmosphere to change?
(A) increased inorganic matter in soil
(B) increased use of fertilizers on crops
(C) increased buildup of greenhouse gases
(D) increased rainfall rates near power plants
| Answer: (C) increased buildup of greenhouse gases | Answer: (D) increased rainfall rates near power plants | Question: In large industrial cities, the emissions from fossil fuels cause the atmosphere to change. Which process allows the atmosphere to change?
(A) increased inorganic matter in soil
(B) increased use of fertilizers on crops
(C) increased buildup of greenhouse gases
(D) increased rainfall rates near power plants
Answer: (C) increased buildup of greenhouse gases |
null | null | null | null | null | null | null | When the evolution gets change, the amount of the organism will be change by the evolution. |
null | null | null | null | null | null | null | Overall, the microbial community fluctuates with the diet of the host – different microbes are required to breakdown different types of plants. |
null | null | null | null | null | null | null | If you apply a force to an object, you may change its energy. |
MCAS_2007_8_5170 | Which of the following identifies the primary function of a radio station tower in a communication system? | {
"label": [
"A",
"B",
"C",
"D"
],
"text": [
"decoder",
"encoder",
"receiver",
"transmitter"
]
} | D | Question: Which of the following identifies the primary function of a radio station tower in a communication system?
(A) decoder
(B) encoder
(C) receiver
(D) transmitter
| Answer: (D) transmitter | Answer: (C) receiver | Question: Which of the following identifies the primary function of a radio station tower in a communication system?
(A) decoder
(B) encoder
(C) receiver
(D) transmitter
Answer: (D) transmitter |
Mercury_SC_406660 | Some animals, such as squirrels, may bury acorns. Which of the following is most likely to happen to the acorns after they have been buried? | {
"label": [
"A",
"B",
"C",
"D"
],
"text": [
"The acorns will be carried away by the wind.",
"The acorns will attach to another organism.",
"The acorns will have a chance to sprout.",
"The acorns will turn into fossils."
]
} | C | Question: Some animals, such as squirrels, may bury acorns. Which of the following is most likely to happen to the acorns after they have been buried?
(A) The acorns will be carried away by the wind.
(B) The acorns will attach to another organism.
(C) The acorns will have a chance to sprout.
(D) The acorns will turn into fossils.
| Answer: (C) The acorns will have a chance to sprout. | Answer: (A) The acorns will be carried away by the wind. | Question: Some animals, such as squirrels, may bury acorns. Which of the following is most likely to happen to the acorns after they have been buried?
(A) The acorns will be carried away by the wind.
(B) The acorns will attach to another organism.
(C) The acorns will have a chance to sprout.
(D) The acorns will turn into fossils.
Answer: (C) The acorns will have a chance to sprout. |
null | null | null | null | null | null | null | Close ecological relationship between two or more organisms of different species that live in direct contact with one another |
Mercury_7007805 | Which biological activity occurs in a repeated rhythm? | {
"label": [
"A",
"B",
"C",
"D"
],
"text": [
"sneezing",
"coughing",
"breathing",
"blinking"
]
} | C | Question: Which biological activity occurs in a repeated rhythm?
(A) sneezing
(B) coughing
(C) breathing
(D) blinking
| Answer: (C) breathing | Answer: (A) sneezing | Question: Which biological activity occurs in a repeated rhythm?
(A) sneezing
(B) coughing
(C) breathing
(D) blinking
Answer: (C) breathing |
null | null | null | null | null | null | null | Consumers obtain energy by eating other organisms. |
null | null | null | null | null | null | null | Small amounts of water evaporates from rivers, streams, and lakes and joins that water vapor. |
null | null | null | null | null | null | null | Some mutants exhibit same phenotypes. |
VASoL_2008_3_24 | While a sailor was out fishing, he got lost at sea. Which object would help him direct the boat back to shore? | {
"label": [
"A",
"B",
"C",
"D"
],
"text": [
"Rope",
"Magnetic compass",
"Blanket",
"Measuring tape"
]
} | B | Question: While a sailor was out fishing, he got lost at sea. Which object would help him direct the boat back to shore?
(A) Rope
(B) Magnetic compass
(C) Blanket
(D) Measuring tape
| Answer: (B) Magnetic compass | Answer: (D) Measuring tape | Question: While a sailor was out fishing, he got lost at sea. Which object would help him direct the boat back to shore?
(A) Rope
(B) Magnetic compass
(C) Blanket
(D) Measuring tape
Answer: (B) Magnetic compass |
null | null | null | null | null | null | null | A teaspoonful is used to a gallon of water. |
VASoL_2010_5_31 | Which item is designed to change electrical energy into heat energy? | {
"label": [
"A",
"B",
"C",
"D"
],
"text": [
"Alarm clock",
"Hand dryer",
"Fan",
"Telephone"
]
} | B | Question: Which item is designed to change electrical energy into heat energy?
(A) Alarm clock
(B) Hand dryer
(C) Fan
(D) Telephone
| Answer: (B) Hand dryer | Answer: (C) Fan | Question: Which item is designed to change electrical energy into heat energy?
(A) Alarm clock
(B) Hand dryer
(C) Fan
(D) Telephone
Answer: (B) Hand dryer |
AKDE&ED_2008_4_45 | From Earth, the Sun appears brighter than any other star because the Sun is the | {
"label": [
"A",
"B",
"C",
"D"
],
"text": [
"newest star.",
"largest star.",
"hottest star.",
"closest star."
]
} | D | Question: From Earth, the Sun appears brighter than any other star because the Sun is the
(A) newest star.
(B) largest star.
(C) hottest star.
(D) closest star.
| Answer: (D) closest star. | Answer: (A) newest star. | Question: From Earth, the Sun appears brighter than any other star because the Sun is the
(A) newest star.
(B) largest star.
(C) hottest star.
(D) closest star.
Answer: (D) closest star. |
NYSEDREGENTS_2006_4_3 | Sleet and hail are forms of | {
"label": [
"A",
"B",
"C",
"D"
],
"text": [
"clouds",
"energy",
"evaporation",
"precipitation"
]
} | D | Question: Sleet and hail are forms of
(A) clouds
(B) energy
(C) evaporation
(D) precipitation
| Answer: (D) precipitation | Answer: (B) energy | Question: Sleet and hail are forms of
(A) clouds
(B) energy
(C) evaporation
(D) precipitation
Answer: (D) precipitation |
null | null | null | null | null | null | null | Therefore, any factor reducing the abundance or availability of sandeels is likely to have a negative effect and lead to population declines. |
null | null | null | null | null | null | null | Most plants need moisture. |
Mercury_7191590 | Jake is testing how light affects plant growth. He grows two plants in identical pots with the same amount of water and fertilizer. Jake grows one of the plants in the sun, and the other in the shade. Which part of Jake's process indicates that there is a control for this investigation? | {
"label": [
"A",
"B",
"C",
"D"
],
"text": [
"He is growing plants in identical pots.",
"He is using the same amount of water.",
"He is growing one plant out of the sun.",
"He is using the same amount of fertilizer."
]
} | C | Question: Jake is testing how light affects plant growth. He grows two plants in identical pots with the same amount of water and fertilizer. Jake grows one of the plants in the sun, and the other in the shade. Which part of Jake's process indicates that there is a control for this investigation?
(A) He is growing plants in identical pots.
(B) He is using the same amount of water.
(C) He is growing one plant out of the sun.
(D) He is using the same amount of fertilizer.
| Answer: (C) He is growing one plant out of the sun. | Answer: (B) He is using the same amount of water. | Question: Jake is testing how light affects plant growth. He grows two plants in identical pots with the same amount of water and fertilizer. Jake grows one of the plants in the sun, and the other in the shade. Which part of Jake's process indicates that there is a control for this investigation?
(A) He is growing plants in identical pots.
(B) He is using the same amount of water.
(C) He is growing one plant out of the sun.
(D) He is using the same amount of fertilizer.
Answer: (C) He is growing one plant out of the sun. |
null | null | null | null | null | null | null | Question: What animal is described as having powers of concentration bent on serving its master?
(A) cat
(B) dog
(C) horse
(D) parrot
Answer: (B) dog |
NYSEDREGENTS_2006_8_3 | In addition to oxygen, which gases make up the largest percentage of Earth's atmosphere? | {
"label": [
"1",
"2",
"3",
"4"
],
"text": [
"hydrogen, helium, and water vapor",
"hydrogen, methane, and ozone",
"carbon dioxide, water vapor, and nitrogen",
"carbon dioxide, methane, and helium"
]
} | 3 | Question: In addition to oxygen, which gases make up the largest percentage of Earth's atmosphere?
(1) hydrogen, helium, and water vapor
(2) hydrogen, methane, and ozone
(3) carbon dioxide, water vapor, and nitrogen
(4) carbon dioxide, methane, and helium
| Answer: (3) carbon dioxide, water vapor, and nitrogen | Answer: (4) carbon dioxide, methane, and helium | Question: In addition to oxygen, which gases make up the largest percentage of Earth's atmosphere?
(1) hydrogen, helium, and water vapor
(2) hydrogen, methane, and ozone
(3) carbon dioxide, water vapor, and nitrogen
(4) carbon dioxide, methane, and helium
Answer: (3) carbon dioxide, water vapor, and nitrogen |
null | null | null | null | null | null | null | [21] Fights establish dominance relationships among males, and determine who gets access to estrous females. |
null | null | null | null | null | null | null | Some spheres fill with water. |
VASoL_2010_5_1 | Which of these human activities most relies on high-quality soil? | {
"label": [
"A",
"B",
"C",
"D"
],
"text": [
"Hiking",
"Hunting",
"Coal mining",
"Growing crops"
]
} | D | Question: Which of these human activities most relies on high-quality soil?
(A) Hiking
(B) Hunting
(C) Coal mining
(D) Growing crops
| Answer: (D) Growing crops | Answer: (C) Coal mining | Question: Which of these human activities most relies on high-quality soil?
(A) Hiking
(B) Hunting
(C) Coal mining
(D) Growing crops
Answer: (D) Growing crops |
Mercury_7085348 | Which of these provides the best evidence that the environment of Earth has changed over millions of years? | {
"label": [
"A",
"B",
"C",
"D"
],
"text": [
"active migration of sand dunes",
"polished appearance of rock surfaces",
"marine fossils found in mountains",
"bones of animals found on the ground"
]
} | C | Question: Which of these provides the best evidence that the environment of Earth has changed over millions of years?
(A) active migration of sand dunes
(B) polished appearance of rock surfaces
(C) marine fossils found in mountains
(D) bones of animals found on the ground
| Answer: (C) marine fossils found in mountains | Answer: (A) active migration of sand dunes | Question: Which of these provides the best evidence that the environment of Earth has changed over millions of years?
(A) active migration of sand dunes
(B) polished appearance of rock surfaces
(C) marine fossils found in mountains
(D) bones of animals found on the ground
Answer: (C) marine fossils found in mountains |
null | null | null | null | null | null | null | Question: What was the name of the parliament of the Weimar Republic?
(A) Reichstag
(B) Bundestag
(C) Landtag
(D) Storting
Answer: (A) Reichstag |
null | null | null | null | null | null | null | Most diets include grain. |
null | null | null | null | null | null | null | In meiosis one the prophase, metaphase, anaphase and telophase will divide the cell into two and separate the homologous pairs. |
null | null | null | null | null | null | null | Second, females occasionally seem to respond to the sexual swellings of others by swelling themselves. |
Mercury_7222968 | In 2004 the Hubble space telescope captured images of distant star clusters, each containing about a million stars. These star clusters were most likely part of which structure? | {
"label": [
"A",
"B",
"C",
"D"
],
"text": [
"a black hole",
"a galaxy",
"a nebula",
"a solar system"
]
} | B | Question: In 2004 the Hubble space telescope captured images of distant star clusters, each containing about a million stars. These star clusters were most likely part of which structure?
(A) a black hole
(B) a galaxy
(C) a nebula
(D) a solar system
| Answer: (B) a galaxy | Answer: (D) a solar system | Question: In 2004 the Hubble space telescope captured images of distant star clusters, each containing about a million stars. These star clusters were most likely part of which structure?
(A) a black hole
(B) a galaxy
(C) a nebula
(D) a solar system
Answer: (B) a galaxy |
Mercury_7133665 | Which action illustrates a chemical change? | {
"label": [
"A",
"B",
"C",
"D"
],
"text": [
"painting a wood chest",
"sawing a wood plank",
"burning wood chips",
"cutting down a tree"
]
} | C | Question: Which action illustrates a chemical change?
(A) painting a wood chest
(B) sawing a wood plank
(C) burning wood chips
(D) cutting down a tree
| Answer: (C) burning wood chips | Answer: (A) painting a wood chest | Question: Which action illustrates a chemical change?
(A) painting a wood chest
(B) sawing a wood plank
(C) burning wood chips
(D) cutting down a tree
Answer: (C) burning wood chips |
null | null | null | null | null | null | null | Question: In which time period does the entry begin?
(A) 1700's
(B) 1900's
(C) 2000's
(D) 1800's
Answer: (D) 1800's |
null | null | null | null | null | null | null | In some few cases, however, plants have become habituated to new conditions. |
null | null | null | null | null | null | null | a symbiotic relationship between two organisms of different species in which one derives some benefit while the other is unaffected. |
ACTAAP_2008_7_14 | An Italian scientist named Alessandro Volta invented the Voltaic pile in 1800. It was able to produce a steady electrical current. Based on this description, what is the modern equivalent of the Voltaic pile? | {
"label": [
"A",
"B",
"C",
"D"
],
"text": [
"a wire",
"a battery",
"a resistor",
"a light bulb"
]
} | B | Question: An Italian scientist named Alessandro Volta invented the Voltaic pile in 1800. It was able to produce a steady electrical current. Based on this description, what is the modern equivalent of the Voltaic pile?
(A) a wire
(B) a battery
(C) a resistor
(D) a light bulb
| Answer: (B) a battery | Answer: (A) a wire | Question: An Italian scientist named Alessandro Volta invented the Voltaic pile in 1800. It was able to produce a steady electrical current. Based on this description, what is the modern equivalent of the Voltaic pile?
(A) a wire
(B) a battery
(C) a resistor
(D) a light bulb
Answer: (B) a battery |
MCAS_2003_8_30 | The surface gravity of Pluto is the weakest of the nine planets because Pluto | {
"label": [
"A",
"B",
"C",
"D"
],
"text": [
"has the lowest temperature.",
"has the smallest mass.",
"rotates the slowest.",
"is farthest from the Sun."
]
} | B | Question: The surface gravity of Pluto is the weakest of the nine planets because Pluto
(A) has the lowest temperature.
(B) has the smallest mass.
(C) rotates the slowest.
(D) is farthest from the Sun.
| Answer: (B) has the smallest mass. | Answer: (A) has the lowest temperature. | Question: The surface gravity of Pluto is the weakest of the nine planets because Pluto
(A) has the lowest temperature.
(B) has the smallest mass.
(C) rotates the slowest.
(D) is farthest from the Sun.
Answer: (B) has the smallest mass. |