Question

why the no. of trophic level in a food chain is limited​

Answer 1

The number of trophic levels in the food chain is limited due to the law of energy transfer in the trophic levels.

10% of the energy received by plants is transferred to the first trophic level animals i.e., herbivores. The rest 90% is lost in the form of heat.

Out of this energy, 10% of it is transferred to the carnivores.

As the number of trophic level increases, the energy received becomes lesser. Therefore the number of trophic level in the food chain is limited.

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