Define or give an example of an ecosystem​

The simplest definition of an ecosystem is that it is a community or group of living organisms that live in and interact with each other in a specific environment.

Seas, rivers

Explanation:

this is the correct answer you want

An ecosystem is a community of living organisms in conjunction with the nonliving components of their environment, interacting as a system. These biotic and abiotic components are linked together through nutrient cycles and energy flows.

answer; i believe the answer is (polygenic inheritance;

atp is used for energy.