About ____ energy is used to build new biomass in ecological pyramid.
-
A.
15%
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B.
30%
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C.
10%
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D.
25%
Correct Answer:
C. 10%
Explanation:
In an ecological pyramid, only about 10% of the energy from one trophic level is typically transferred to the next to build new biomass. The remaining 90% is largely lost as heat during metabolic processes or used for respiration and maintenance. This principle, known as the 10% Rule, explains why biomass and energy availability decrease significantly at higher levels of a food chain.
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