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Biology Ecosystem Energy Flow and Food Chain Single Correct MCQ
Published on: August 21, 2026

Given flowchart represents grazing and detritus food chain.

Grazing food chain: Grass → Rabbit → Lion

Detritus food chain: Dead leaves → Wood louse → Black bird

The organisms which constitute the first trophic level of the grazing food chain and the detritus food chain are respectively,

A
grass and dead leaves
B
grass and wood louse
C
rabbit and wood louse
D
rabbit and black bird

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Text Solution

Verified by Experts
The correct answer is:
A

In the grazing food chain, grass (producer) is the first trophic level.

In the detritus food chain, dead leaves (detritus) form the first trophic level.

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