NC Science EOG

A food chain in an ecosystem includes blackberry bushes, deer, and wolves. • Deer eat blackberries. • Wolves eat deer. If the population of wolves decreases, how will this affect the population of blackberry bushes?

• It will decrease because there will be fewer deer.

• It will increase because there will be fewer deer.

• It will decrease because there will be more deer.

• It will increase because there will be more deer.

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NGSS.MS-LS2-1

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Some people have a “hitchhiker’s” thumb that allows them to bend their thumbs more than other people. How do these people most likely get this trait?

• They learn it from friends.

• They inherit it from their parents.

• They get it as a result of an illness.

• They get it as a result of their jobs.

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NGSS.MS-LS4-4

Which is an example of a non-inherited trait?

• shape of face

• hair color

• food preference

• tongue rolling

A bowling ball moves across a flat surface at 7 feet per second. If a student is asked to calculate the total distance traveled by the ball, what other information does the student need to know?

• amount of friction between the ball and the surface

• amount of force applied to the ball

• total time the ball rolled

• mass of the ball

Water droplets forming on the outside of a cold glass of water on a hot, summer day is an example of which part of the water cycle?

• condensation

• evaporation

• precipitation

• transpiration

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NGSS.MS-ESS2-4

On a June day, a warm, moist air mass slowly passes over a colder air mass in North Carolina. What will most likely happen next?

• Rain will fall.

• Cirrus clouds will form.

• Skies will clear.

• Atmospheric pressure will rise.

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NGSS.MS-ESS2-5

What would most likely result if all plants in an area were destroyed?

• Consumer populations would increase because more sunlight would reach the ground.

• Decomposer populations would increase because more sunlight would reach the ground.

• Consumer populations would decrease because plants provide them with water.

• Consumer populations would decrease because plants provide them with energy.

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NGSS.MS-LS2-1

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What would most likely happen if all of the decomposers in an ecosystem were removed?

• The animals in the ecosystem would die because of the spread of disease.

• The plants in the ecosystem would eventually die because of a lack of nutrients in the soil.

• The plants in the ecosystem would begin to die out because of a decrease in available water.

• The animals in the ecosystem would eat other types of food because of a decrease in producers.

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NGSS.MS-LS2-1

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Which statement best describes the relationship between the nervous system and the muscular system?

• The nervous system controls the muscular system.

• The muscular system controls the nervous system.

• The nervous system provides nutrients and oxygen for the muscular system.

• The muscular system provides nutrients and oxygen for the nervous system.

What causes a wagon to speed up when going down a hill?

• gravity

• friction

• air pressure

• mass

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NGSS.MS-PS2-2

NGSS.MS-PS2-4