Question

An ecosystem is all the populations of organisms that live together and

A.
the food that they take in as energy.

B.
the microorganisms that depend on them.

C.
the organisms that generate energy from sunlight.

D.
the physical factors with which they interact.

Answer 1

ecosystem is the relationship between biotic(plant and animal) and abiotic factors which are the physical factors they interact with i.e sunlight.

Answer 2

D; the physixal factors with which they interact