Food Chains, Webs, and Plant Cells Unit Test

Food of almost any kind can be traced back to what?

• animals

• soil

• the sun

• plants

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Which of these is an example of a producer

• snake

• human

• worm

• grass

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Which of these is a consumer

• sun

• human

• tree

• fungi

Which of these keeps prey populations under control?

• apex predator

• zebra

• producer

• prey

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When a millipede breaks down dead and decaying material, it is acting as what?

• a decomposer

• an apex predator

• a producer

• prey

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Which of these animals is an apex predator?

• mouse

• snake

• eagle

• mink

What would happen if there were no apex predators in an ecosystem?

• the food web would be out of balance

• other animals wouldn't have enough grass to eat

• the primary consumer population would grow too fast

• all of the above

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The source of all energy in an ecosystem comes originally from the _____________?

• consumers

• the sun

• producers

• water

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An ecosystem is:

• energy flow from the sun through animals

• matter cycling between nonliving factors in an environment

• the interactions of living things

• the interaction between abotic and biotic factors in an environment

A producer in an ecosystem gets its energy by:

• consuming or eating other organisms

• breaking down dead organisms

• drinking water

• using the sun to make it's own energy

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