Question

As energy moves progressively through various tropic levels of food chain it is no longer available to the previous level . Why

Answer 1

Answer:

The energy transfer efficiency through the trophic levels is about 10% and not 100% as the rest is lost in growth, movement, waste, or respiration.

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Answer 2

Answer:

There is no trophic level after Apex predators because there is no more Free Energy available to sustain anything. B . Primary producers use the most Free Energy, which limits what is available to all the remaining trophic levels.