Ecosystem EOG Review Quiz 3

In a food chain, the sun provides energy for an apple to grow. A deer eats an apple from the tree. Which is a consumer?

• the tree

• the apple

• the deer

• the sun

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Which of these organisms is considered a consumer?

• algae

• bird

• fungi

• tree

Which best explains why producers are an important part of an ecosystem?

• They pass the Sun´s energy on to other organisms.

• They pass energy from consumers to decomposers.

• They make their own energy and pass it on to other producers.

• They pass energy from first level consumers to second level consumers.

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Which best describes the role of both mushrooms and worms in an ecosystem?

• They provide food for carnivores.

• They provide food for herbivores.

• They provide nutrients for the soil.

• They provide nutrients during photosynthesis.

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NGSS.MS-LS2-3

Which best describes the role of a first level consumer in an ecosystem?

• Consumers eat producers and pass the energy along in an ecosystem.

• Consumers eat scavengers and pass the energy along in an ecosystem.

• Consumers eat decomposers and pass the energy along in an ecosystem.

• Consumers eat other consumers and pass the energy along in an ecosystem.

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NGSS.MS-LS2-3

In which category are all living things most directly dependent upon the sun for energy?

• carnivores

• producers

• herbivores

• decomposers

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Which organisms use energy to make nutrients for plants?

• producers

• carnivores

• herbivores

• decomposers

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Which statement best describes producers?

• Producers in water ecosystems are mainly algae.

• Producers in land ecosystems are mainly grasses.

• Producers in both water and land ecosystems are mainly trees.

• Producers in both water and land ecosystems are mainly green plants.

Which is most likely to happen if an ecosystem does not receive sunlight for a long time?

• All living organisms would eventually die.

• The number of plants would be increased.

• All living organisms would eventually adapt.

• The number of herbivores would be increased.

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When the predator population in an ecosystem decreases, which will most likely happen to the prey population?

• The prey population will die out.

• The prey population will decrease.

• The prey population will gradually increase.

• The prey population will move to another ecosystem.

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