5.9B Food Webs

What is the original source of Energy in a food web?

• Decomposers (Bacteria and Fungi)

• Producers (Plants)

• Consumers (Animals)

• Sun

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Which of the following gets it's energy directly from a producer?

• Sun

• Plants

• Deer

• Snake

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The diagram shows a prairie food web. In the food web shown, all of the following are consumers EXCEPT –

• Prairie Grass

• Mountain Lion

• Squirrel

• Robin

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Decomposers like mushrooms get energy by –

• producing their own food

• eating grass, fruit, and seeds

• breaking down dead organisms

• absorbing carbon dioxide from the air

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In the food web diagram, what do the arrows represent?

• Life Cycle

• Metamorphosis

• How food is produced by organisms

• The flow of energy through an ecosystem

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Green plants are producers that begin the flow of energy between organisms in a food web when they-

• reproduce by generating seeds

• absorb water and nutrients through the soil

• release oxygen into the air

• make their own food using sunlight

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Mold, fungi, and some types of bacteria are classified as decomposers. What is the role of a decomposer in a food web?

• break down waste and dead organisms

• use sunlight and water to produce their own food

• release oxygen into the atmosphere for respiration

• to provide the energy animals need for food

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The diagram shows a pond food web. What two organisms get their energy directly from insect larvae?

• algae and minnows

• sunfish and bass

• minnows and sunfish

• snails and snapping turtles

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The diagram shows a woodlands food chain. What is the role of the tree in the food chain?

Sun → Tree → Squirrel → Hawk

• make energy available directly to the Hawk

• To use Sun's energy to produce food

• to break down waste left by squirrels

• to provide a place for the hawk to build it's nest

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The prairie food web illustrated here has producers and consumers. In this food web, how many more consumers than producers are there?

• 2

• 5

• 7

• 9

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