Home Biology Ecosystem Structure and Function, Productivity and Decomposition Density and distribution of the plant and an…
Biology Ecosystem Structure and Function, Productivity and Decomposition Single Correct MCQ
Published on: August 11, 2026

Density and distribution of the plant and animal species vary along-

A
Stratification
B
Secession
C
Gradation
D
Zonation

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The correct answer is:
D

In ecosystems, the density and distribution of organisms change depending on environmental gradients such as altitude, depth, or distance. This variation is called zonation, where species are arranged in zones according to ecological conditions.

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