Question

according to the 10% rule with regard to bio mass

Answer 1

The 10% rule refers to the energy transfer of a small amount of energy from one food level to another, where the rest of the 90% of energy is dissipated into the environment or surroundings.

Answer 2

It says that out of the 100% energy taken in from food, only 10% of the energy is passed on to the next level.