Home Biology Organisms and Populations Population Interactions Two closely related species competing for th…
Biology Organisms and Populations Population Interactions Single Correct MCQ
Published on: August 21, 2026

Two closely related species competing for the same resource can avoid competition by choosing different habits. The phenomenon is called and was supported by .

A
Competitive exclusion, Gause
B
Competitive exclusion, Mac Arthur
C
Resource partitioning, Gause
D
Resource partitioning, Mac Arthur

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The correct answer is:
D

When closely related species use the same resource but divide it in different ways (different feeding habits, times, or microhabitats), it is called resource partitioning. This concept was strongly supported by Robert MacArthur through his studies on warblers.

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