Bill Nye Food Webs

A connection of food chains with many food energy paths in an ecosystem is a ____________.

• ecosystem

• food web

• environment

• population

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What may happen if the snowshoe hare was removed from the food web pictured?

• The insects in the habitat would increase.

• The shrew population would decrease due to being only hawk food source.

• The willow tree population would decrease.

• Foxes would dies due to no food source. 

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The shrew provides energy for the _______.

• cricket

• grasshopper

• frog

• snake

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One path that energy could take through an ecosystem is called a ________________________.

• Food Web

• Food Chain

• Abiotic Factors

• Biotic Factors

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Pick the item in the food web that is the primary producer?

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Why is energy transfer in a food chain not 100% efficient?

• Because some energy is always lost as heat.

• Because consumers create energy during digestion.

• Because producers absorb all the energy from the sun.

• Because decomposers use all the energy from dead organisms.

Which of the following organisms compete for the mouse as a food source

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How do decomposers contribute to the energy flow in a food web?

• By eating live plants and animals.

• By converting sunlight into chemical energy.

• By breaking down dead organisms and releasing nutrients back into the ecosystem.

• By hunting and consuming other animals.

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How does a decomposer contribute to the energy flow in an ecosystem?

• By consuming live plants and animals

• By producing its own food through photosynthesis

• By breaking down dead organisms and releasing nutrients back into the ecosystem

• By preying on primary consumers

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A food web can be broken down into several seperate

• food chains

• food pyramids

• producers

• consumers

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