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In a food chain, what percentage of energy roughly transfers from one trophic level to the next?
AAbout 50 percent of energy passes upward
BAbout 10 percent of energy passes upward
CAbout 90 percent of energy passes upward
D100 percent of energy is transferred
Answer & Solution
Correct answer: B. About 10 percent of energy passes upward
The '10% law' (Lindeman): only about 10% of energy at one trophic level transfers to the next; the rest is lost as heat (respiration, undigested matter).
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