7th Grade Peer Mentoring: Ecology #2

Peer Review: Ecology #2

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The diagram shows some relationships within a natural community. Which statement best explains the relationships shown?

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Multiple Choice

The diagram shows some relationships within a natural community. Which statement best explains the relationships shown?

• Water changes over time to a nonrenewable resource.

• Living things exchange materials with their environment.

• Minerals recycle the dead materials in the environment.

• Living things produce other living things.

The diagram shows a rabbit population at two different times. Which environmental factor may have contributed to the increase in the rabbit population?

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Multiple Choice

The diagram shows a rabbit population at two different times. Which environmental factor may have contributed to the increase in the rabbit population?

• decrease in resources

• decrease in predators

• increase in disease

• increase in pollution

Based on the graph, which conditions most likely existed during the period from 1860 to 1865?

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Multiple Choice

Based on the graph, which conditions most likely existed during the period from 1860 to 1865?

• Plenty of food was available and there were few predators.

• Food was scarce and there were few predators.

• Plenty of food was available and there were many predators.

• No conclusion can be drawn from the information given.