Science 7th Grade

Which of the following describes a population.

• A polar bear and grizzly bears.

• 42 fireflies

• butterflies, ladybugs, and ants

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NGSS.MS-LS4-4

Factors that limit population growth

• Food and water

• climate and weather

• space and shelter

• all of the above

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Includes how an organism obtains its food, the type of food the organism eats, and what other organisms eat it ________?

• interactions

• niche

• predation

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Are benefits that humans receive from the ecosystem.

• cultural service

• provisional services

• regulatory services

• supporting services

• all of the above

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NGSS.MS-LS2-5

Give 2 examples of biotic and abiotic factors can we find in a city?

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NGSS.MS-LS2-3

What is the law of conservation of mass?

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NGSS.MS-PS1-5

What is the function of nitrogen fixation?

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NGSS.MS-LS2-1

Give an example of mutualism.

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NGSS.MS-LS2-2

What is the difference between primary and secondary succession?

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NGSS.MS-LS2-4

Why does a keystone species have such high ecological value?

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