A. True ......................................
Answer:
Why is there less energy at each trophic level?
Energy decreases as it moves up trophic levels because energy is lost as metabolic heat when the organisms from one trophic level are consumed by organisms from the next level. ... A food chain can usually sustain no more than six energy transfers before all the energy is used up.
Explanation:
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I believe D because non of the answers above are reality, humans are great at living in different types of environments and even tend to change there environment.
They are called decomposers.
