Question

Which organisms recycle the organic molecules of dead organisms at all trophic levels and return their nutrients to the environment?

Answer 1

decomposes

Step-by-step explanation:

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Answer 2

Decomposers recycle all the organic molecules of all the dead organisms, by breaking them down and make these nutrients available to the environment, which can now be used as the source of energy for other organisms. Decomposers can be bacteria, fungi or invertebrates.