Question

The number of trophic levels in an ecosystem are limited. Comment.

Answer 1

$10\%$ law:

According to the $10\%$ law, only $10$ percent of the energy is transferred to each trophic level from the lower trophic level.

Most of the energy is lost as heat. The highest trophic level will have the least energy.

Therefore, this limits the number of trophic levels in a food chain.