Lesson 2 Check

Sort the organisms from the food web as producers or consumers.

Groups:

(a) Producers

,

(b) Consumers

• grasshopper

• carrot

• grass

• owl

• grain

• rabbit

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Decomposers are not included in most food webs. What role do decomposers play in an ecosystem?

• They get energy by breaking down wastes and dead organisms and return raw materials to the soil and water.

• They use water and carbon dioxide to make usable energy from sunlight.

• They eat other organisms for energy.

• They eat plants and animals for energy.

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If the fox population were to decrease a great deal due to overhunting, what would two possible effects be?

• The rabbit population would increase.

• The bird population would increase.

• The owl population would decrease.

• The bird population would decrease.

• The rabbit population would decrease.

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Consumers can be categorized based on what the eat. Match each type of consumer with an example from the food web.

• Rabbit

• Omnivore

• Bird

• Carnivore

• Owl

• Herbivore

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Why is an energy pyramid largest at the bottom?

• The largest organisms are at the bottom of the pyramid.

• The most energy is available at the bottom of the pyramid.

• The largest variety of species are at the bottom of the pyramid.

• The least amount of energy is at the bottom of the pyramid.

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