NGSS.MS-LS2-4

Prairie dogs rely on underground tunnels for shelter. Which bestexplains how the prairie dog population is affected when their tunnels are disrupted and exposed?

• The prairie dogs are burned by the sun.
• The prairie dogs are exposed to predators
• The prairie dogs can find more food to eat in the fields
• The prairie dogs are forced to learn to live in trees and shrubs

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NGSS.MS-LS2-4

Copper compounds are used to control the growth of algae and other aquatic plants. Copper interferes with photosynthesis in these organisms. What would be the most likely result of an accidental spill of these compounds in an aquatic environment?

• Fish would grow larger than usual
• Zooplankton would increase
• Plants would increase in size and decrease in number
• The plant populations would be reduced

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NGSS.MS-LS2-4

how does increasing nitrates impact stream health

• excess algae
• increased oxygen
• increased water clarity

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NGSS.MS-LS2-4

Insecticides are sprayed over a large area in an effort to reduce the number of grasshoppers that are eating the corn plants. How will this change affect this food chain? 

• The number of grasshoppers will increase
• The number of lizards will increase
• The number of lizards and hawks will decrease
• The number of grasshoppers, lizards, and hawks will decrease

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NGSS.MS-LS2-4

Invasive species can crowd out native species.

• TRUE

• FALSE

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NGSS.MS-LS2-4

Which of the following would cause biodiversity to DECREASE?

• Water

• Forest Fires

• Sunlight

• Producers

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NGSS.MS-LS2-4

How do nutrients affect the Chesapeake Bay?

• Increases pollution

• decreases habitats

• increases algae

• increases runoff

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NGSS.MS-LS2-4

Mud and sand are constantly moving, so very few algae and plants can establish in which biome?

• Taiga

• Coral Reef

• Worms

• Beach

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NGSS.MS-LS2-4

Which would most affect the health of fish in a local pond?

• The daily release of hot water into the pond from a local factory.

• A storm temporarily stirring up water and sediments in the pond.

• The occasional erosion of sediments into the pond from a nearby field.

• A slight increase in the number of people who fish in the pond for food.

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NGSS.MS-LS2-4

What is the most likely outcome of a water shortage or severe drought?

• Fish will die.

• Plants will grow faster.

• Animals will migrate.

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NGSS.MS-LS2-4