Question

Organisms at a higher trophic level have less energy available. Comment.

Answer 1

$10\%$ law:

The energy flow decreases as we go up the trophic levels due to the $10\%$ law.

The law states that only $10\%$ of the energy is transferred to each trophic level as we go up the trophic levels.

Pyramid of energy:

The flow of energy is unidirectional as the energy passes from the producers to primary consumers and then to secondary consumers finally to tertiary consumers.

At every level there is loss of energy in the form of heat.


Hence, the higher trophic levels have lesser energy.