Unit 5: Carbon Cycle and Ecosystems

organism such as an earthworm and fungi, that feeds on dead plant and animal matter

• Heterotroph

• Autotroph

• Decomposer

• Producer

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An organism that can make its own food.

• Autotroph

• Heterotroph

• Decomposer

• Consumer

steps in a food chain or food web are called

• Trophic Level

• Food Levels

• Trophic steps

• Carbon Cycles

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What is lost to the environment at each trophic level?

• Sunlight

• Biomass

• nutrients from soil

• heat

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The rabbit in this food web would be considered a:

• Decomposer
• Producer
• Secondary Consumer
• Primary Consumer

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In the energy pyramid, which organisms have the most energy available?

• Producers

• Primary Consumers

• Secondary Consumers

• Tertiary Consumers

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The shrew provides energy for the _______?

• cricket

• Hawk

• frog

• snake

• Cricket

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Which group of organisms is always found at the base of a food chain or food web?

• producers

• primary consumers

• secondary consumers

• Decomposers

If these organisms were arranged in a food pyramid, which organism would have the least amount of total energy available?

• coyote
• insect
• lizard
• shrub

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Based on this energy pyramid, which group are the secondary consumers?

• sharks and large birds

• algae, plankton and seagrass

• herbivorous fish, crustaceans and sea urchins

• seals and carnivorous fish

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