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Which one of the following group of organisms forms a food chain ?

June 1, 2025 by rawan239

Which one of the following group of organisms forms a food chain ?

Grass, human and fish

Grass, goat and human

Tree, tree cutter and tiger

Goat, cow and human

This question was previously asked in

UPSC NDA-1 – 2018

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The group “Grass, goat and human” forms a food chain.

A food chain represents the flow of energy in an ecosystem. It typically starts with producers (organisms that make their own food, like plants – grass), followed by primary consumers (herbivores that eat producers – goat), and then secondary or tertiary consumers (carnivores or omnivores that eat other consumers – human eating goat). The chain shows a linear sequence of who eats whom.

Option A is incorrect because fish do not typically eat humans in an ecological food chain context. Option C is incorrect because “tree cutter” is not a consumer in the ecological sense of energy transfer; tigers also don’t typically consume tree cutters as a primary food source. Option D lists multiple primary consumers and one omnivore but doesn’t form a single, sequential food chain; it rather describes organisms at different trophic levels or parallel food paths (goat eats grass, cow eats grass, human might eat goat or cow).

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