Plants are depended on Animals & Animal are depended on Plants. Its a food chain. Animals which are living by plants - eat plants, animal which are living by eating those plant eating animals- they eat them and so on.

And when any animal died then decomposed in to the soil which grows the fertility of the soil & thus help plant to grow up.

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The interdependence of plants and animals in forest are: Producers Consumers Decompers Abiotic Biotic.etc For example: tigers attack deer, deer eats grass, leaves, plants grow through water and sun light.
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