Question

what level of organization consists of all the living things in a given area, together with the nonliving environment?
a ecosystem
b biome
c population
d community

Explanation:

An ecosystem includes all living organisms (biotic factors) and non - living components (abiotic factors) in a given area. A biome is a large region with distinct climate and characteristic plant and animal communities. A population is a group of the same species in an area. A community is all the different species of living organisms in an area.

Answer:

A. ecosystem