Answer:
Variety of animals are essential for their survival and maintenance of food chain. For example, grass is eaten by insects which in turn are eaten by the frogs. The frogs are eaten by snakes which in turn are eaten by eagles. Thus it forms a food chain: Grass → insects → frog → snake → eagle Many food chains can be found in the forest. All food chains are inter-connected. If any ? one food chain is disturbed, it affects other food chains. No part of the forest is independent of the other parts. If we take off one component, say trees, all other components would be thrown out.
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