Question

in an ecosystem we consider only the
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Answer 1

Explanation:

An ecosystem is a community of living organisms in conjunction with the nonliving components of their environment, interacting as a system.

Energy flow is the amount of energy that moves through a food chain.

Energy that is not used in an ecosystem is eventually lost as heat.

Energy is passed on from one trophic level to the next trophic level and each time some energy is lost as heat into the environment.

This is due to the fact that each organism must use some energy that they received from other organisms in order to survive.