Final answer:
An ecosystem includes a particular environment and all of its communities of different populations.
Step-by-step explanation:
The level that includes a particular environment and all of its communities of different populations is called an ecosystem.
An ecosystem consists of all the living things in a given area, together with the nonliving environment. The nonliving environment includes water, sunlight, soil, and other physical factors.
For example, a forest ecosystem includes all the plant and animal populations that interact within that forest.