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OHAT_2009_5_9
Earthworms live underground in the soil. As they move through the soil, they create tunnels. The tunnels help improve the soil. Plants grow better in soil that has earthworms. Which statement explains how earthworm tunnels help plants?
{ "label": [ "A", "B", "C", "D" ], "text": [ "Earthworm tunnels bring heat into the soil that warms plant roots.", "Earthworm tunnels loosen the soil so plant roots can easily grow", "Earthworm tunnels allow sunlight to reach the plant roots in the soil.", "Earthworm tunnels create places where insects can hide and protect plant roots." ] }
B
Question: Earthworms live underground in the soil. As they move through the soil, they create tunnels. The tunnels help improve the soil. Plants grow better in soil that has earthworms. Which statement explains how earthworm tunnels help plants? (A) Earthworm tunnels bring heat into the soil that warms plant roots. (B) Earthworm tunnels loosen the soil so plant roots can easily grow (C) Earthworm tunnels allow sunlight to reach the plant roots in the soil. (D) Earthworm tunnels create places where insects can hide and protect plant roots.
Answer: (B) Earthworm tunnels loosen the soil so plant roots can easily grow
Answer: (A) Earthworm tunnels bring heat into the soil that warms plant roots.
Question: Earthworms live underground in the soil. As they move through the soil, they create tunnels. The tunnels help improve the soil. Plants grow better in soil that has earthworms. Which statement explains how earthworm tunnels help plants? (A) Earthworm tunnels bring heat into the soil that warms plant roots. (B) Earthworm tunnels loosen the soil so plant roots can easily grow (C) Earthworm tunnels allow sunlight to reach the plant roots in the soil. (D) Earthworm tunnels create places where insects can hide and protect plant roots. Answer: (B) Earthworm tunnels loosen the soil so plant roots can easily grow
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The Common Starling has a wide variation in plumage.
TIMSS_2007_4_pg29
Where do plants get energy from to make food?
{ "label": [ "A", "B", "C", "D" ], "text": [ "air", "soil", "water", "sunlight" ] }
D
Question: Where do plants get energy from to make food? (A) air (B) soil (C) water (D) sunlight
Answer: (D) sunlight
Answer: (A) air
Question: Where do plants get energy from to make food? (A) air (B) soil (C) water (D) sunlight Answer: (D) sunlight
ACTAAP_2015_5_3
In 1872, the United States created a national park called Yellowstone. The park includes more than two million acres in the three states of Idaho, Montana, and Wyoming. Which statement best explains why national parks have a positive effect on ecosystems?
{ "label": [ "A", "B", "C", "D" ], "text": [ "National parks limit people from seeing wildlife.", "National parks limit mining, logging, and hunting.", "National parks protect land for farmers and ranchers.", "National parks protect land for people to build houses." ] }
B
Question: In 1872, the United States created a national park called Yellowstone. The park includes more than two million acres in the three states of Idaho, Montana, and Wyoming. Which statement best explains why national parks have a positive effect on ecosystems? (A) National parks limit people from seeing wildlife. (B) National parks limit mining, logging, and hunting. (C) National parks protect land for farmers and ranchers. (D) National parks protect land for people to build houses.
Answer: (B) National parks limit mining, logging, and hunting.
Answer: (C) National parks protect land for farmers and ranchers.
Question: In 1872, the United States created a national park called Yellowstone. The park includes more than two million acres in the three states of Idaho, Montana, and Wyoming. Which statement best explains why national parks have a positive effect on ecosystems? (A) National parks limit people from seeing wildlife. (B) National parks limit mining, logging, and hunting. (C) National parks protect land for farmers and ranchers. (D) National parks protect land for people to build houses. Answer: (B) National parks limit mining, logging, and hunting.
TAKS_2009_8_31
A group of students found metamorphic rocks near a campsite. The presence of metamorphic rocks is most likely evidence of
{ "label": [ "A", "B", "C", "D" ], "text": [ "dinosaur activity", "sediment deposition", "high pressure", "wind-borne sand" ] }
C
Question: A group of students found metamorphic rocks near a campsite. The presence of metamorphic rocks is most likely evidence of (A) dinosaur activity (B) sediment deposition (C) high pressure (D) wind-borne sand
Answer: (C) high pressure
Answer: (A) dinosaur activity
Question: A group of students found metamorphic rocks near a campsite. The presence of metamorphic rocks is most likely evidence of (A) dinosaur activity (B) sediment deposition (C) high pressure (D) wind-borne sand Answer: (C) high pressure
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Most of the water that evaporates from leaves passes out through the
NCEOGA_2013_5_30
On a cold, cloudy day, the local weather forecaster predicts that a high-pressure system will be moving into the area in the next 24 hours. Which weather conditions will this system most likely bring to the area?
{ "label": [ "A", "B", "C", "D" ], "text": [ "stormy", "sunny", "snowy", "hot" ] }
B
Question: On a cold, cloudy day, the local weather forecaster predicts that a high-pressure system will be moving into the area in the next 24 hours. Which weather conditions will this system most likely bring to the area? (A) stormy (B) sunny (C) snowy (D) hot
Answer: (B) sunny
Answer: (D) hot
Question: On a cold, cloudy day, the local weather forecaster predicts that a high-pressure system will be moving into the area in the next 24 hours. Which weather conditions will this system most likely bring to the area? (A) stormy (B) sunny (C) snowy (D) hot Answer: (B) sunny
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Question: What is the purpose of reserving wildlife space? (A) To allow for hunting (B) To protect natural habitats (C) To encourage human interaction with wildlife (D) To promote urban development Answer: (B) To protect natural habitats
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They also can be found in hot spring areas where the temperatures are warm.
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A high genetic variability for the agronomic traits studied was observed.
NCEOGA_2013_5_7
A pot is heated on a stove. Which process causes the metal handle of the pot to also become hot?
{ "label": [ "A", "B", "C", "D" ], "text": [ "combustion", "convection", "radiation", "conduction" ] }
D
Question: A pot is heated on a stove. Which process causes the metal handle of the pot to also become hot? (A) combustion (B) convection (C) radiation (D) conduction
Answer: (D) conduction
Answer: (A) combustion
Question: A pot is heated on a stove. Which process causes the metal handle of the pot to also become hot? (A) combustion (B) convection (C) radiation (D) conduction Answer: (D) conduction
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Most species eat insects and spiders , although several species on islands feed mostly on plants .
Mercury_7013038
The relationship between an owl and a mouse is a
{ "label": [ "A", "B", "C", "D" ], "text": [ "parasite-host relationship.", "symbiotic relationship.", "mutualistic relationship.", "predator-prey relationship." ] }
D
Question: The relationship between an owl and a mouse is a (A) parasite-host relationship. (B) symbiotic relationship. (C) mutualistic relationship. (D) predator-prey relationship.
Answer: (D) predator-prey relationship.
Answer: (B) symbiotic relationship.
Question: The relationship between an owl and a mouse is a (A) parasite-host relationship. (B) symbiotic relationship. (C) mutualistic relationship. (D) predator-prey relationship. Answer: (D) predator-prey relationship.
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It produces eggs and sperm.
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Water on Earth's surface will evaporate into the atmosphere as energy is absorbed by liquid water.
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Some maps show surface water.
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Some rats eat rats.
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Symptoms differ greatly with the variety.
Mercury_7111720
Scientists who have studied global climate changes have found that the average temperature of Earth has risen. There has also been an increase in the accumulation of atmospheric greenhouse gases. What is the goal of the scientific community in collecting this type of data?
{ "label": [ "A", "B", "C", "D" ], "text": [ "to understand how greenhouse gases are related to global warming", "to decrease the temperature using fossil fuels", "to change public attitude on using natural resources", "to increase the amount of ice in the Arctic" ] }
A
Question: Scientists who have studied global climate changes have found that the average temperature of Earth has risen. There has also been an increase in the accumulation of atmospheric greenhouse gases. What is the goal of the scientific community in collecting this type of data? (A) to understand how greenhouse gases are related to global warming (B) to decrease the temperature using fossil fuels (C) to change public attitude on using natural resources (D) to increase the amount of ice in the Arctic
Answer: (A) to understand how greenhouse gases are related to global warming
Answer: (B) to decrease the temperature using fossil fuels
Question: Scientists who have studied global climate changes have found that the average temperature of Earth has risen. There has also been an increase in the accumulation of atmospheric greenhouse gases. What is the goal of the scientific community in collecting this type of data? (A) to understand how greenhouse gases are related to global warming (B) to decrease the temperature using fossil fuels (C) to change public attitude on using natural resources (D) to increase the amount of ice in the Arctic Answer: (A) to understand how greenhouse gases are related to global warming
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Question: What is toe walking considered as a compensatory adaptation to? (A) hip extensor weakness (B) knee extensor weakness (C) ankle extensor weakness (D) toe extensor weakness Answer: (B) knee extensor weakness
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They take other shapes because of cell walls found in most plant cells and in many one-celled organisms or because of attachments to and pressure from other, neighboring cells or surfaces.
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The eggs are incubated for 12 to 13 days.
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Question: What did the sextoness hasten to turn on? (A) water (B) electricity (C) gas (D) fire Answer: (C) gas
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The plants have anthocyanins, pigments that create red or blue, and can convert light into heat.
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But, of course, urine is not the only waste product excreted by the body; there is also the solid waste, processed through the large intestine, or colon.
Mercury_183855
In flowering plants, what structure containing DNA is transported from one plant to another?
{ "label": [ "A", "B", "C", "D" ], "text": [ "nectar", "chlorophyll", "glucose", "pollen" ] }
D
Question: In flowering plants, what structure containing DNA is transported from one plant to another? (A) nectar (B) chlorophyll (C) glucose (D) pollen
Answer: (D) pollen
Answer: (A) nectar
Question: In flowering plants, what structure containing DNA is transported from one plant to another? (A) nectar (B) chlorophyll (C) glucose (D) pollen Answer: (D) pollen
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Question: What is the most common type of color-blindness? (A) blue-yellow (B) red-green (C) black-white (D) purple-orange Answer: (B) red-green
MCAS_2016_8_12
Wolves kill many elk every year and often attack old, sick, and injured members of a herd. Which of the following best describes the role of the wolves in the wolf-elk relationship?
{ "label": [ "A", "B", "C", "D" ], "text": [ "competitor", "host", "parasite", "predator" ] }
D
Question: Wolves kill many elk every year and often attack old, sick, and injured members of a herd. Which of the following best describes the role of the wolves in the wolf-elk relationship? (A) competitor (B) host (C) parasite (D) predator
Answer: (D) predator
Answer: (A) competitor
Question: Wolves kill many elk every year and often attack old, sick, and injured members of a herd. Which of the following best describes the role of the wolves in the wolf-elk relationship? (A) competitor (B) host (C) parasite (D) predator Answer: (D) predator
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Most flowers produce seed capsules.
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Most subjects have choices.
Mercury_SC_411884
Which resource provides the minerals plants need to grow?
{ "label": [ "A", "B", "C", "D" ], "text": [ "sunlight", "water", "soil", "air" ] }
C
Question: Which resource provides the minerals plants need to grow? (A) sunlight (B) water (C) soil (D) air
Answer: (C) soil
Answer: (D) air
Question: Which resource provides the minerals plants need to grow? (A) sunlight (B) water (C) soil (D) air Answer: (C) soil
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Question: Which TV series paved the way for female-led series like Buffy the Vampire Slayer, Alias, and Dark Angel? (A) Charmed (B) Xena (C) Friends (D) The X-Files Answer: (B) Xena
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Most ornithologists have (part) cell membranes.
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Most food diets consist of muscle meat.
NYSEDREGENTS_2016_4_24
A student tosses a ball into the air. Which force causes the ball to fall back to the ground?
{ "label": [ "A", "B", "C", "D" ], "text": [ "gravity", "magnetism", "mechanical", "friction" ] }
A
Question: A student tosses a ball into the air. Which force causes the ball to fall back to the ground? (A) gravity (B) magnetism (C) mechanical (D) friction
Answer: (A) gravity
Answer: (C) mechanical
Question: A student tosses a ball into the air. Which force causes the ball to fall back to the ground? (A) gravity (B) magnetism (C) mechanical (D) friction Answer: (A) gravity
MCAS_2003_8_34
Which two body systems work together to transport oxygen to the cells?
{ "label": [ "A", "B", "C", "D" ], "text": [ "skeletal and respiratory", "digestive and respiratory", "respiratory and circulatory", "respiratory and reproductive" ] }
C
Question: Which two body systems work together to transport oxygen to the cells? (A) skeletal and respiratory (B) digestive and respiratory (C) respiratory and circulatory (D) respiratory and reproductive
Answer: (C) respiratory and circulatory
Answer: (A) skeletal and respiratory
Question: Which two body systems work together to transport oxygen to the cells? (A) skeletal and respiratory (B) digestive and respiratory (C) respiratory and circulatory (D) respiratory and reproductive Answer: (C) respiratory and circulatory
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This can be due to the fact that older plants are woodier than younger plants, with younger plants having a higher moisture content and less harsh foliage.
Mercury_7214130
Researchers are developing new types of crop plants with desirable characteristics such as disease resistance and drought tolerance. Crossing plants so that the next generation will express desirable traits is best described as
{ "label": [ "A", "B", "C", "D" ], "text": [ "selective breeding.", "natural selection.", "genetic engineering.", "gene sequencing." ] }
A
Question: Researchers are developing new types of crop plants with desirable characteristics such as disease resistance and drought tolerance. Crossing plants so that the next generation will express desirable traits is best described as (A) selective breeding. (B) natural selection. (C) genetic engineering. (D) gene sequencing.
Answer: (A) selective breeding.
Answer: (C) genetic engineering.
Question: Researchers are developing new types of crop plants with desirable characteristics such as disease resistance and drought tolerance. Crossing plants so that the next generation will express desirable traits is best described as (A) selective breeding. (B) natural selection. (C) genetic engineering. (D) gene sequencing. Answer: (A) selective breeding.
Mercury_7042963
A light bulb manufacturer claims its light bulb is "twice as bright" per unit of electrical energy consumed as the leading light bulb. If this claim is correct, what factor must be accurately compared between the two bulbs?
{ "label": [ "A", "B", "C", "D" ], "text": [ "how much each bulb weighs", "how long each bulb lasts", "how much heat each bulb releases", "how much metal each bulb contains" ] }
C
Question: A light bulb manufacturer claims its light bulb is "twice as bright" per unit of electrical energy consumed as the leading light bulb. If this claim is correct, what factor must be accurately compared between the two bulbs? (A) how much each bulb weighs (B) how long each bulb lasts (C) how much heat each bulb releases (D) how much metal each bulb contains
Answer: (C) how much heat each bulb releases
Answer: (B) how long each bulb lasts
Question: A light bulb manufacturer claims its light bulb is "twice as bright" per unit of electrical energy consumed as the leading light bulb. If this claim is correct, what factor must be accurately compared between the two bulbs? (A) how much each bulb weighs (B) how long each bulb lasts (C) how much heat each bulb releases (D) how much metal each bulb contains Answer: (C) how much heat each bulb releases
Mercury_182210
Which of the following eras is known as the "Age of Mammals"?
{ "label": [ "A", "B", "C", "D" ], "text": [ "Precambrian", "Paleozoic", "Mesozoic", "Cenozoic" ] }
D
Question: Which of the following eras is known as the "Age of Mammals"? (A) Precambrian (B) Paleozoic (C) Mesozoic (D) Cenozoic
Answer: (D) Cenozoic
Answer: (C) Mesozoic
Question: Which of the following eras is known as the "Age of Mammals"? (A) Precambrian (B) Paleozoic (C) Mesozoic (D) Cenozoic Answer: (D) Cenozoic
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Students think of and discuss other ways that plants and animals rely on each other.
MCAS_2008_8_5698
When bedrock in Massachusetts is examined, it often appears scraped and polished. Which of the following most likely caused the bedrock to appear scraped and polished?
{ "label": [ "A", "B", "C", "D" ], "text": [ "crustal deformation", "frequent earthquakes", "glacial movement", "volcanic eruptions" ] }
C
Question: When bedrock in Massachusetts is examined, it often appears scraped and polished. Which of the following most likely caused the bedrock to appear scraped and polished? (A) crustal deformation (B) frequent earthquakes (C) glacial movement (D) volcanic eruptions
Answer: (C) glacial movement
Answer: (A) crustal deformation
Question: When bedrock in Massachusetts is examined, it often appears scraped and polished. Which of the following most likely caused the bedrock to appear scraped and polished? (A) crustal deformation (B) frequent earthquakes (C) glacial movement (D) volcanic eruptions Answer: (C) glacial movement
Mercury_SC_417560
Bats find their prey at night using one of their senses to detect echoes. What does the bat send out to find prey?
{ "label": [ "A", "B", "C", "D" ], "text": [ "odors", "light", "sound", "electricity" ] }
C
Question: Bats find their prey at night using one of their senses to detect echoes. What does the bat send out to find prey? (A) odors (B) light (C) sound (D) electricity
Answer: (C) sound
Answer: (A) odors
Question: Bats find their prey at night using one of their senses to detect echoes. What does the bat send out to find prey? (A) odors (B) light (C) sound (D) electricity Answer: (C) sound
Mercury_7205905
At science conventions, scientists present their research, and members of the audience can discuss or ask questions about the research. The main value of these science conventions is that they allow scientists to
{ "label": [ "A", "B", "C", "D" ], "text": [ "see new places.", "find money for projects.", "practice public speaking.", "exchange their ideas." ] }
D
Question: At science conventions, scientists present their research, and members of the audience can discuss or ask questions about the research. The main value of these science conventions is that they allow scientists to (A) see new places. (B) find money for projects. (C) practice public speaking. (D) exchange their ideas.
Answer: (D) exchange their ideas.
Answer: (C) practice public speaking.
Question: At science conventions, scientists present their research, and members of the audience can discuss or ask questions about the research. The main value of these science conventions is that they allow scientists to (A) see new places. (B) find money for projects. (C) practice public speaking. (D) exchange their ideas. Answer: (D) exchange their ideas.
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The alleles for the advantageous characteristic becomes more frequent in the population, this is evolution - the change in allele frequency over time.
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Fungi can produce spores either without sex or when two fungal cells fuse and share DNA.
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The rate at which the primary producers in a community turn solar energy into stored chemical energy via photosynthesis.
NYSEDREGENTS_2006_4_16
Which characteristic helps a fox find food?
{ "label": [ "A", "B", "C", "D" ], "text": [ "sense of smell", "thick fur", "long tail", "pointed teeth" ] }
A
Question: Which characteristic helps a fox find food? (A) sense of smell (B) thick fur (C) long tail (D) pointed teeth
Answer: (A) sense of smell
Answer: (D) pointed teeth
Question: Which characteristic helps a fox find food? (A) sense of smell (B) thick fur (C) long tail (D) pointed teeth Answer: (A) sense of smell
MEA_2013_5_14
Which event would most likely result in more food for organisms that are scavengers?
{ "label": [ "A", "B", "C", "D" ], "text": [ "Fish die and sink to the bottom of a pond.", "Trees take up and store water with roots.", "Beavers build a new dam and lodge.", "Plants get more sunshine and water." ] }
A
Question: Which event would most likely result in more food for organisms that are scavengers? (A) Fish die and sink to the bottom of a pond. (B) Trees take up and store water with roots. (C) Beavers build a new dam and lodge. (D) Plants get more sunshine and water.
Answer: (A) Fish die and sink to the bottom of a pond.
Answer: (B) Trees take up and store water with roots.
Question: Which event would most likely result in more food for organisms that are scavengers? (A) Fish die and sink to the bottom of a pond. (B) Trees take up and store water with roots. (C) Beavers build a new dam and lodge. (D) Plants get more sunshine and water. Answer: (A) Fish die and sink to the bottom of a pond.
NYSEDREGENTS_2004_8_25
Which scientific model could be used to predict the properties of an element?
{ "label": [ "1", "2", "3", "4" ], "text": [ "closed loop system", "Punnett square", "Periodic Table", "water cycle chart" ] }
3
Question: Which scientific model could be used to predict the properties of an element? (1) closed loop system (2) Punnett square (3) Periodic Table (4) water cycle chart
Answer: (3) Periodic Table
Answer: (1) closed loop system
Question: Which scientific model could be used to predict the properties of an element? (1) closed loop system (2) Punnett square (3) Periodic Table (4) water cycle chart Answer: (3) Periodic Table
NYSEDREGENTS_2005_8_43
Which observation of a plant supports the inference that photosynthesis can take place?
{ "label": [ "1", "2", "3", "4" ], "text": [ "a strong, sweet smell", "a dry, rough texture", "a green color", "a smooth stem" ] }
3
Question: Which observation of a plant supports the inference that photosynthesis can take place? (1) a strong, sweet smell (2) a dry, rough texture (3) a green color (4) a smooth stem
Answer: (3) a green color
Answer: (2) a dry, rough texture
Question: Which observation of a plant supports the inference that photosynthesis can take place? (1) a strong, sweet smell (2) a dry, rough texture (3) a green color (4) a smooth stem Answer: (3) a green color
Mercury_401657
Which characteristic is shared by Earth and the Moon?
{ "label": [ "A", "B", "C", "D" ], "text": [ "glaciers", "flowing water", "an atmosphere that contains oxygen", "an orbit created by the force of gravity" ] }
D
Question: Which characteristic is shared by Earth and the Moon? (A) glaciers (B) flowing water (C) an atmosphere that contains oxygen (D) an orbit created by the force of gravity
Answer: (D) an orbit created by the force of gravity
Answer: (B) flowing water
Question: Which characteristic is shared by Earth and the Moon? (A) glaciers (B) flowing water (C) an atmosphere that contains oxygen (D) an orbit created by the force of gravity Answer: (D) an orbit created by the force of gravity
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T/F Over time, two very similar populations of organisms may become incapable of reproduction due to behavior changes.
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Question: In the scenario described, what ends up being replaced with a cardboard cutout? (A) soda (B) fries (C) patty (D) ketchup Answer: (C) patty
VASoL_2011_5_23
Which of these human activities in a forest has a positive effect on the ecosystem?
{ "label": [ "A", "B", "C", "D" ], "text": [ "Clearing the land to build new homes", "Planting new trees where old ones were cut down", "Building a new highway through the area", "Cutting down trees to make farmland" ] }
B
Question: Which of these human activities in a forest has a positive effect on the ecosystem? (A) Clearing the land to build new homes (B) Planting new trees where old ones were cut down (C) Building a new highway through the area (D) Cutting down trees to make farmland
Answer: (B) Planting new trees where old ones were cut down
Answer: (D) Cutting down trees to make farmland
Question: Which of these human activities in a forest has a positive effect on the ecosystem? (A) Clearing the land to build new homes (B) Planting new trees where old ones were cut down (C) Building a new highway through the area (D) Cutting down trees to make farmland Answer: (B) Planting new trees where old ones were cut down
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Most conditions include symptoms.
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Question: What is the recommended way to apply ice to a bruise? (A) directly on the skin (B) in a metal container (C) in a plastic bag wrapped in a cloth or towel (D) in a paper bag Answer: (C) in a plastic bag wrapped in a cloth or towel
Mercury_SC_405001
Scientists invented a liquid that removes grease and keeps the skin soft. How could this discovery most likely be used?
{ "label": [ "A", "B", "C", "D" ], "text": [ "to improve dish soap", "to cure a disease", "to make clothes", "to grow plants" ] }
A
Question: Scientists invented a liquid that removes grease and keeps the skin soft. How could this discovery most likely be used? (A) to improve dish soap (B) to cure a disease (C) to make clothes (D) to grow plants
Answer: (A) to improve dish soap
Answer: (D) to grow plants
Question: Scientists invented a liquid that removes grease and keeps the skin soft. How could this discovery most likely be used? (A) to improve dish soap (B) to cure a disease (C) to make clothes (D) to grow plants Answer: (A) to improve dish soap
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The domain ____ has larger more complex cells
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These specialized cells (gametes) usually unite in pairs in a process known as fertilization, in which a minute sperm cell enters 01 fuses with a relatively large egg cell to form a zygote, which is essentially a new individual at the beginning of its career.
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Differential heating from the sun between the land which is quite cool and the ocean which is relatively warm causes areas of low pressure to develop over land.
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Most keepers have (part) cells.
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Question: What type of study was performed to determine the importance of stress avoidance traits for local adaptation in Cocklebur? (A) genome sequencing (B) reciprocal transplant (C) chemical analysis (D) behavioral observation Answer: (B) reciprocal transplant
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Oxidation is a favorable process in an aerobic environment, which is the reason cells are able to derive energy from the oxidation of macromolecules.
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It is seen that the attitude of the females during the process reproduction is also quite different.
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Question: How many 'députés' represent the overseas departments and territories in the French National Assembly? (A) 21 (B) 27 (C) 15 (D) 30 Answer: (B) 27
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Question: What did the ripe and overripe peels test positive for? (A) disaccharide ketoses (B) glucose (C) fructose (D) monosaccharide ketoses Answer: (D) monosaccharide ketoses
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Overharvesting can lead to resource destruction, including extinction at the population level and even extinction of whole species.
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zygote produced through the union of sperm and egg cells - then cell division - tissue development during cleavage - blastula formation - and then gastrulation ---- z/cd/tc/b/g
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Some temperature affects production.
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Lutz Becks and Aneil Agrawal (University of Toronto) used facultative sexual rotifers (Brachionus calyciflorus) to test the theory that sex is more likely to evolve in novel environments, wherein adaptation pressures are present.
OHAT_2008_8_33
What is the relationship between tissues and organs?
{ "label": [ "A", "B", "C", "D" ], "text": [ "Organs are made from one type of tissue.", "Tissues are made from one type of organ.", "Tissues are made from different types of organs.", "Organs are made from different types of tissues." ] }
D
Question: What is the relationship between tissues and organs? (A) Organs are made from one type of tissue. (B) Tissues are made from one type of organ. (C) Tissues are made from different types of organs. (D) Organs are made from different types of tissues.
Answer: (D) Organs are made from different types of tissues.
Answer: (B) Tissues are made from one type of organ.
Question: What is the relationship between tissues and organs? (A) Organs are made from one type of tissue. (B) Tissues are made from one type of organ. (C) Tissues are made from different types of organs. (D) Organs are made from different types of tissues. Answer: (D) Organs are made from different types of tissues.
Mercury_7158848
Which is the most likely response of a human to an increase in temperature?
{ "label": [ "A", "B", "C", "D" ], "text": [ "increasing the amount of perspiration", "increasing waste elimination from the bladder", "a reduction in the desire for liquids", "a contraction in blood vessels in the skin" ] }
A
Question: Which is the most likely response of a human to an increase in temperature? (A) increasing the amount of perspiration (B) increasing waste elimination from the bladder (C) a reduction in the desire for liquids (D) a contraction in blood vessels in the skin
Answer: (A) increasing the amount of perspiration
Answer: (D) a contraction in blood vessels in the skin
Question: Which is the most likely response of a human to an increase in temperature? (A) increasing the amount of perspiration (B) increasing waste elimination from the bladder (C) a reduction in the desire for liquids (D) a contraction in blood vessels in the skin Answer: (A) increasing the amount of perspiration
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As a result, African rhinos (top) and Indian rhinos (bottom) are in danger of becoming extinct.
CSZ_2006_5_CSZ10256
A city has a temperature of 75 °F, with partly cloudy skies. Weather forecasters are predicting that the air pressure and temperature will drop during the day. Which type of weather is most likely for this area in the late afternoon?
{ "label": [ "A", "B", "C", "D" ], "text": [ "rainy.", "sunny.", "snowing.", "hailing." ] }
A
Question: A city has a temperature of 75 °F, with partly cloudy skies. Weather forecasters are predicting that the air pressure and temperature will drop during the day. Which type of weather is most likely for this area in the late afternoon? (A) rainy. (B) sunny. (C) snowing. (D) hailing.
Answer: (A) rainy.
Answer: (D) hailing.
Question: A city has a temperature of 75 °F, with partly cloudy skies. Weather forecasters are predicting that the air pressure and temperature will drop during the day. Which type of weather is most likely for this area in the late afternoon? (A) rainy. (B) sunny. (C) snowing. (D) hailing. Answer: (A) rainy.
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Some suck pests feed on plants.
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Question: What type of animal is described as having tentacles? (A) Mammal (B) Reptile (C) Invertebrate (D) Fish Answer: (C) Invertebrate
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They can also be found in estuaries and river basins.
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Humans eat human food.
TIMSS_1995_8_Q14
A mixture of powdered iron and sulfur is heated. What will be formed?
{ "label": [ "A", "B", "C", "D", "E" ], "text": [ "a single element", "two other elements", "a solution", "an alloy", "a compound" ] }
E
Question: A mixture of powdered iron and sulfur is heated. What will be formed? (A) a single element (B) two other elements (C) a solution (D) an alloy (E) a compound
Answer: (E) a compound
Answer: (D) an alloy
Question: A mixture of powdered iron and sulfur is heated. What will be formed? (A) a single element (B) two other elements (C) a solution (D) an alloy (E) a compound Answer: (E) a compound
Mercury_SC_409150
Kendall studied the ways in which human body systems work together. He compared the respiratory and circulatory systems. In which way are these two systems similar to each other?
{ "label": [ "A", "B", "C", "D" ], "text": [ "They both bring oxygen to the body.", "They both send messages to the body.", "They both digest nutrients for the body.", "They both pump blood through the body." ] }
A
Question: Kendall studied the ways in which human body systems work together. He compared the respiratory and circulatory systems. In which way are these two systems similar to each other? (A) They both bring oxygen to the body. (B) They both send messages to the body. (C) They both digest nutrients for the body. (D) They both pump blood through the body.
Answer: (A) They both bring oxygen to the body.
Answer: (C) They both digest nutrients for the body.
Question: Kendall studied the ways in which human body systems work together. He compared the respiratory and circulatory systems. In which way are these two systems similar to each other? (A) They both bring oxygen to the body. (B) They both send messages to the body. (C) They both digest nutrients for the body. (D) They both pump blood through the body. Answer: (A) They both bring oxygen to the body.
OHAT_2008_8_13
Termites eat wood but cannot digest it. Protozoans live in the termites' stomachs and use enzymes to break down the wood. The digested wood provides nutrition for both the termites and the protozoans. What type of relationship is this?
{ "label": [ "A", "B", "C", "D" ], "text": [ "mutualism", "parasitism", "predation", "commensalism" ] }
A
Question: Termites eat wood but cannot digest it. Protozoans live in the termites' stomachs and use enzymes to break down the wood. The digested wood provides nutrition for both the termites and the protozoans. What type of relationship is this? (A) mutualism (B) parasitism (C) predation (D) commensalism
Answer: (A) mutualism
Answer: (C) predation
Question: Termites eat wood but cannot digest it. Protozoans live in the termites' stomachs and use enzymes to break down the wood. The digested wood provides nutrition for both the termites and the protozoans. What type of relationship is this? (A) mutualism (B) parasitism (C) predation (D) commensalism Answer: (A) mutualism
Mercury_7267750
What is significant about the discovery of water on Mars?
{ "label": [ "A", "B", "C", "D" ], "text": [ "It proves there is life on Mars.", "It provides evidence there may be life on Mars.", "It proves there was an advanced civilization on Mars.", "It provides evidence of an advanced civilization on Mars." ] }
B
Question: What is significant about the discovery of water on Mars? (A) It proves there is life on Mars. (B) It provides evidence there may be life on Mars. (C) It proves there was an advanced civilization on Mars. (D) It provides evidence of an advanced civilization on Mars.
Answer: (B) It provides evidence there may be life on Mars.
Answer: (D) It provides evidence of an advanced civilization on Mars.
Question: What is significant about the discovery of water on Mars? (A) It proves there is life on Mars. (B) It provides evidence there may be life on Mars. (C) It proves there was an advanced civilization on Mars. (D) It provides evidence of an advanced civilization on Mars. Answer: (B) It provides evidence there may be life on Mars.
Mercury_7217385
Which SI unit would be most appropriate for recording the length of a typical classroom?
{ "label": [ "A", "B", "C", "D" ], "text": [ "gram", "kilogram", "meter", "kilometer" ] }
C
Question: Which SI unit would be most appropriate for recording the length of a typical classroom? (A) gram (B) kilogram (C) meter (D) kilometer
Answer: (C) meter
Answer: (A) gram
Question: Which SI unit would be most appropriate for recording the length of a typical classroom? (A) gram (B) kilogram (C) meter (D) kilometer Answer: (C) meter
Mercury_7228760
Unequal distribution of the hormone auxin in plants helps to regulate the direction of plant growth. Which of the following is accomplished by plants in regulating the distribution of auxin?
{ "label": [ "A", "B", "C", "D" ], "text": [ "pollination of flowers", "transportation of nutrients", "discouraging predation", "responding to the environment" ] }
D
Question: Unequal distribution of the hormone auxin in plants helps to regulate the direction of plant growth. Which of the following is accomplished by plants in regulating the distribution of auxin? (A) pollination of flowers (B) transportation of nutrients (C) discouraging predation (D) responding to the environment
Answer: (D) responding to the environment
Answer: (A) pollination of flowers
Question: Unequal distribution of the hormone auxin in plants helps to regulate the direction of plant growth. Which of the following is accomplished by plants in regulating the distribution of auxin? (A) pollination of flowers (B) transportation of nutrients (C) discouraging predation (D) responding to the environment Answer: (D) responding to the environment
NYSEDREGENTS_2009_4_4
When an ice cube melts, its state of matter changes from a
{ "label": [ "A", "B", "C", "D" ], "text": [ "gas to a liquid", "solid to a liquid", "liquid to a solid", "solid to a gas" ] }
B
Question: When an ice cube melts, its state of matter changes from a (A) gas to a liquid (B) solid to a liquid (C) liquid to a solid (D) solid to a gas
Answer: (B) solid to a liquid
Answer: (D) solid to a gas
Question: When an ice cube melts, its state of matter changes from a (A) gas to a liquid (B) solid to a liquid (C) liquid to a solid (D) solid to a gas Answer: (B) solid to a liquid
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Like many other modern mammalian groups, these animals evolved from primitive insectivores which had lived alongside the dinosaurs during the Cretaceous Period.
VASoL_2007_3_34
The seeds of an oak come from the ___.
{ "label": [ "A", "B", "C", "D" ], "text": [ "fruit", "leaf", "root", "stem" ] }
A
Question: The seeds of an oak come from the ___. (A) fruit (B) leaf (C) root (D) stem
Answer: (A) fruit
Answer: (C) root
Question: The seeds of an oak come from the ___. (A) fruit (B) leaf (C) root (D) stem Answer: (A) fruit
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Most images are produced by light rays.
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Most diets lead to liver problems.
Mercury_7137935
During protein synthesis, mRNA is translated into three-base sequences representing amino acids. What signals the ribosome to begin translating the mRNA into a new amino acid sequence?
{ "label": [ "A", "B", "C", "D" ], "text": [ "a codon", "enzymes", "a mutation", "temperature" ] }
A
Question: During protein synthesis, mRNA is translated into three-base sequences representing amino acids. What signals the ribosome to begin translating the mRNA into a new amino acid sequence? (A) a codon (B) enzymes (C) a mutation (D) temperature
Answer: (A) a codon
Answer: (C) a mutation
Question: During protein synthesis, mRNA is translated into three-base sequences representing amino acids. What signals the ribosome to begin translating the mRNA into a new amino acid sequence? (A) a codon (B) enzymes (C) a mutation (D) temperature Answer: (A) a codon
Mercury_SC_408396
Students stir salt, sand, sawdust, and seashells into a jar filled with water. Which of the materials will form a solution?
{ "label": [ "A", "B", "C", "D" ], "text": [ "salt and water", "sand and sawdust", "seashells and water", "sawdust and seashells" ] }
A
Question: Students stir salt, sand, sawdust, and seashells into a jar filled with water. Which of the materials will form a solution? (A) salt and water (B) sand and sawdust (C) seashells and water (D) sawdust and seashells
Answer: (A) salt and water
Answer: (B) sand and sawdust
Question: Students stir salt, sand, sawdust, and seashells into a jar filled with water. Which of the materials will form a solution? (A) salt and water (B) sand and sawdust (C) seashells and water (D) sawdust and seashells Answer: (A) salt and water
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That oxygen is used up in cellular respiration to produce ATP.
Mercury_SC_401368
Which set of equipment would be best to use when investigating what is found in a sample of pond water?
{ "label": [ "A", "B", "C", "D" ], "text": [ "net, gloves, specimen bags", "beaker, calculator, graph paper", "microscope, eye dropper, slides", "measuring tape, thermometer, clipboard" ] }
C
Question: Which set of equipment would be best to use when investigating what is found in a sample of pond water? (A) net, gloves, specimen bags (B) beaker, calculator, graph paper (C) microscope, eye dropper, slides (D) measuring tape, thermometer, clipboard
Answer: (C) microscope, eye dropper, slides
Answer: (B) beaker, calculator, graph paper
Question: Which set of equipment would be best to use when investigating what is found in a sample of pond water? (A) net, gloves, specimen bags (B) beaker, calculator, graph paper (C) microscope, eye dropper, slides (D) measuring tape, thermometer, clipboard Answer: (C) microscope, eye dropper, slides
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Most mothers find babies.
CSZ_2008_5_CSZ20249
Salt concentration, water temperature, plankton, and the whale shark might all be used in a description of an ocean
{ "label": [ "A", "B", "C", "D" ], "text": [ "climate.", "food web.", "ecosystem.", "population." ] }
C
Question: Salt concentration, water temperature, plankton, and the whale shark might all be used in a description of an ocean (A) climate. (B) food web. (C) ecosystem. (D) population.
Answer: (C) ecosystem.
Answer: (A) climate.
Question: Salt concentration, water temperature, plankton, and the whale shark might all be used in a description of an ocean (A) climate. (B) food web. (C) ecosystem. (D) population. Answer: (C) ecosystem.
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They evolved many adaptations to achieve these goals.
MDSA_2010_8_39
As the human population increases, more fossil fuels are being used. The burning of fossil fuels produces greenhouse gases. How might humans reduce greenhouse gases?
{ "label": [ "A", "B", "C", "D" ], "text": [ "Buy cars that use gasoline.", "Build power plants that use coal.", "Use renewable resources to generate power.", "Use nonrenewable resources to generate power." ] }
C
Question: As the human population increases, more fossil fuels are being used. The burning of fossil fuels produces greenhouse gases. How might humans reduce greenhouse gases? (A) Buy cars that use gasoline. (B) Build power plants that use coal. (C) Use renewable resources to generate power. (D) Use nonrenewable resources to generate power.
Answer: (C) Use renewable resources to generate power.
Answer: (A) Buy cars that use gasoline.
Question: As the human population increases, more fossil fuels are being used. The burning of fossil fuels produces greenhouse gases. How might humans reduce greenhouse gases? (A) Buy cars that use gasoline. (B) Build power plants that use coal. (C) Use renewable resources to generate power. (D) Use nonrenewable resources to generate power. Answer: (C) Use renewable resources to generate power.
ACTAAP_2013_7_9
Why should plants be included in investigations about the water cycle?
{ "label": [ "A", "B", "C", "D" ], "text": [ "Plants speed up the water cycle by removing carbon from the air.", "Plants start the water cycle when they make water in photosynthesis.", "Plants are part of the water cycle through the process of transpiration.", "Plants stop the water cycle because they absorb it and stop the flow to streams." ] }
C
Question: Why should plants be included in investigations about the water cycle? (A) Plants speed up the water cycle by removing carbon from the air. (B) Plants start the water cycle when they make water in photosynthesis. (C) Plants are part of the water cycle through the process of transpiration. (D) Plants stop the water cycle because they absorb it and stop the flow to streams.
Answer: (C) Plants are part of the water cycle through the process of transpiration.
Answer: (D) Plants stop the water cycle because they absorb it and stop the flow to streams.
Question: Why should plants be included in investigations about the water cycle? (A) Plants speed up the water cycle by removing carbon from the air. (B) Plants start the water cycle when they make water in photosynthesis. (C) Plants are part of the water cycle through the process of transpiration. (D) Plants stop the water cycle because they absorb it and stop the flow to streams. Answer: (C) Plants are part of the water cycle through the process of transpiration.
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An enucleated egg cell has the nucleus of a somatic cell inserted.