Cycles of Energy Review

One aspect of a species' niche is its habitat.

• True

• False

Which are types of consumers? Click all that apply.

• omnivore

• photoautotroph

• herbivore

• carnivore

• detritivore

Ecosystems require constant inputs of ________ from sunlight or chemicals.

• waste

• food webs

• energy

• trophic levels

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What part of an ecosystem does this picture best show?

• predator population

• habitat

• competitive exclusion principle

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The feeding positions in a food chain or web are called:

• trophic levels

• biomass

• energy

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This image shows that:

• mice are primary producers because they create their own energy.

• only ten percent of energy moves from one trophic level to the next.

• energy is measured in jilometers.

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The relationship in which members of one species consume members of another species is called:

• population

• predation

• competition

• specialization

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This graph shows that:

• a common adaptation in both predator and prey is camouflage.

• predator-prey relationships account for most energy transfers in food chains and food webs.

• a predator-prey relationship tends to keep the populations of both species in balance.

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A keystone species:

• plays an especially important role in its community.

• is typically in the first trophic level.

• help predators capture prey.

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What would happen if sea stars were removed from the coral reef community?

• mussels and sea urchins would disappear.

• the coral reef community would be destroyed.

• fish would become terrestrial species.

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