MAP Review-Ecosystems and Interactions

A living or once-living organisms in an ecosystem is a

• population
• biotic factor
• abiotic factor
• community

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A nonliving element in an ecosystem is an 

• animal
• abiotic factor
• biotic factor
• organism

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Which organism do the owl and the weasel compete for in the food web?

• Hawk
• Spider
• Grasshopper
• Shrew

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Which of the following is a herbivore?

• cricket
• frog
• hawk
• shrew

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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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NGSS.MS-LS2-1

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Which of the following would be the most likely effect, if there were a sudden increase in the cricket population?

• There would be a decrease in the small bird population.
• There would be a decrease in the grass/flowers population.
• There would be a decrease in the mice population.
• There would be an increase in the grass/flowers population.

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NGSS.MS-LS2-1

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A frog eats a fly. The frog and fly are demonstrating ________.

• mutualism
• competition
• predator/prey
• parasitism

A tapeworm inside a dog is

• competition
• predation
• commensalism
• parasitism

As populations grow, they tend to spread out into new territory. Which limiting factor is most likely to become an issue?

• food
• shelter
• space
• water

When an ecosystem is affected by loss of shelter, what happens to the populations in that ecosystem?

• They can decrease or die out
• They are usually not affected
• They can readily adapt to the changes
• The populations increase

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NGSS.MS-LS2-1

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