Question

What does the word ecosystem refer to?

Answer 1

Answer:

group of interacting populations in a defined place and the nonliving factors that affect  them

Explanation:

An ecosystem is a group of interacting populations in a defined place and the nonliving factors that affect  them.

An ecosystem can also be a natural unit composed of living and nonliving components whose interactions result in a stable self-supporting system. Ecosystems are generally categorized as either aquatic or terrestrial.