QQuestion
The smallest unit of an ecosystem containing both biotic and abiotic factors is—
(a) A green leaf
(b) A flowering branch
(c) An organ of a plant
(d) A pond
✓Answer
(d) A pond
Explanation:
A pond contains both biotic (plants, animals, microorganisms) and abiotic (water, soil, temperature, light, minerals) factors, making it the basic, complete, and smallest unit of an ecosystem.
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