Biology Ecosystem All Topic Question For Revision Test Single Correct MCQ
Published on: August 20, 2026

An ecosystem is a

A
group of components that interact with one another.
B
group of interacting species in one place at one time.
C
biological community and component of the physical environment with which the community interacts.
D
group of interacting chemicals and their cycles

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Verified by Experts
The correct answer is:
C

An ecosystem is defined as a functional unit of nature where living organisms (the biological community) interact among themselves and with their surrounding physical environment (abiotic factors like air, water, and soil). This interaction involves the flow of energy and the cycling of nutrients.

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