Ecology

What is the order of succession shown in this figure?

• C, D , A, B

• A, B, C, D

• B, A, D, C

• D, A, B, C

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NGSS.MS-LS2-3

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Organisms that produce their own food mostly through photosynthesis are called.

• Heterotrophs

• Chemotrophs

• Autotrophs

• Decomposers

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Heterotrophs that get energy and nutrition from dead or decaying organisms or their waste products by releasing digestive enzymes on them to access the stored nutrients, then recycle nutrients back to the ecosystem are called ___________.

• Decomposers

• Detritivores

• Autotrophs

• Scavengers

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Parts of an ecosystem that are living or deal with the living. Examples include producers, consumers, decomposers, predation, disease, competition, parasitism, and symbiosis.

• Abiotic factors

• Biotic factors

• Ecosystem

• Feeding relationships

Which of the following organisms is a primary consumer?

• Grass

• Rabbit

• Fox

• Snake

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NGSS.MS-LS2-2

Which of the following organisms in competition with the weasel for their food source?

• Grass

• Rabbit

• Fox

• Snake

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What would happen to the rabbit population if the fox population moved out of the area represented by the food web?

• The rabbit population would increase

• The rabbit population would decrease

• The rabbit population would neither increase nor decrease

• The rabbit population would become extinct

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What might happen if you remove a primary consumer from the ecosystem?

• There would be more food for secondary consumers.

• The number of primary consumers would increase.

• The number of plants would increase.

• The number of secondary consumers would increase.

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What does a food chain represent?

• How all living organisms within a habitat are connected.

• All of the things that a particular animal eats.

• How plants create their own food.

• A single path of energy transfer within a habitat.

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NGSS.MS-LS2-3

The arrows in a food chain or web represents what?

• They point to the organism that is being eaten.

• It shows how sunlight flows within an ecosystem.

• They show what direction the energy is flowing between organisms.

• They represent how water is transferred within a habitat.

Tags

NGSS.MS-LS2-3