Multiple Choice
An ecosystem is best described as
A) a system that is composed of nonliving or inorganic matter.
B) a system composed of living organisms.
C) a group of living organisms and the abiotic spheres with which they interact.
D) all living organisms in the atmosphere, hydrosphere, and lithosphere.
E) a group of living plants and the soil types that is present.
Correct Answer:

Verified
Correct Answer:
Verified
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