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Trace Matter and Energy on Food Webs
Worksheet
Grade Level
Grade 8
8.99 Trace Matter and Energy on Food Webs
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Which option correctly compares how energy and matter move through the web?
A
Both energy and matter cycle in a closed loop; neither is lost from the ecosystem.
B
Energy enters as sunlight and moves one-way through the web, but matter is recycled when decomposers turn dead organisms into nutrients for producers.
C
Matter flows one-way and is destroyed at each trophic level, while energy is recycled by decomposers.
D
Energy and matter both stop moving once they reach top predators.
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