Food Webs Food Chains Energy Pyramid Trophic Level

what does an energy pyramid show?

• Energy flow in a community

• Longest lifespans

• The stronger animal higher it is on the pyramid

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In the energy pyramid , how many of the energy in each level gets lost as heat ?

• 80%

• 90%

• 10%

• 20%

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How is a food web different from a food chain?

• Foods webs contain only producers, not consumers.

• Food webs do not include decomposers.

• Food webs contain many different,linked food chains.

• Food webs exist in aquatic environment;food chain exist in terrestrial environment

How might a lack of sunlight disrupt the food web

• It would cause consumers to consume less

• It would prevent decomposers from decomposing matter

• It would prevent producers from producing nutrients.

• It would not disrupt the food web at all.

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In an ecological pyramid top carnivores are represented at the

• the base

• the tip

• in the middle

• all over the pyramid

First trophic level of a ecological pyramid includes

• producers

• primary consumers

• secondary consumers

• tertiary consumers

A consumer gets energy by doing what?

• Making it themselves

• Breaking down biotic wastes and dead organisms and returning raw materials to the ecosystem

• Soaking it up from the ground

• Feeding on other organisms

Tropic levels are represented by

• squares

• circles

• pyramids

• lines

what role do you play in the food web?

• producers

• consumer

• Decomposer

• Human

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How are primary consumers different from secondary consumers?

• Primary consumers eat only plants;secondary consumers eat other consumers.

• Primary consumers eat other consumers;secondary consumers eat only plants.

• primary consumers eat plants and other consumer;secondary consumers eat plants and decompose matter

• Primary consumers eat plants and decompose matter ;secondary consumers consumers eat plants and other consumers.

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