AP Environmental Scienceeasymcq1 pt
Approximately what percentage of energy transfers from one trophic level to the next?
A.10%
B.90%
C.50%
D.100%
Explanation
Core Concept
The ten-percent rule: only about a tenth of one level's energy becomes biomass in the next; the rest is lost as heat, waste, and respiration.
Correct Answer
A10%
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