Home Biology Ecosystem Ecological Succession (NIS) In plant succession, when climax community i…
Biology Ecosystem Ecological Succession (NIS) Single Correct MCQ
Published on: August 13, 2026

In plant succession, when climax community is reached, the net productivity

A
continues to increase
B
becomes zero
C
becomes reduced
D
becomes stable

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Verified by Experts
The correct answer is:
D

In plant succession, ecosystems gradually move from pioneer stages to a climax community.

• At climax, the ecosystem reaches a state of dynamic equilibrium.

• Gross primary productivity (GPP) and community respiration (R) balance each other.

• Therefore, net productivity (NPP = GPP – R) becomes stable, not zero or continuously increasing.

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