As energy passes through a food chain, approximately ____ percent is lost as it passes through each trophic level.

Name: As energy passes through a food chain, approximately ____ percent is lost as it passes through each trophic level.
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Approximately 90% of the energy is lost as it passes through each trophic level, primarily due to metabolic processes and as heat. This is known as the 10% rule, where only about 10% of the energy from one trophic level is transferred to the next.

As Energy Passes Through a Food Chain, Approximately ____ Percent