In an ecosystem. tiow (transfer) of energy is unidirectional. As energy trapped in let tropic level, only 10% of energy is transferred to next trophic level.
`underset"(Biomass 10 Kg)"("Dear")underset("Ebergy lost in procoes of respiration and other vital activities 90% i.e., 9kg")rarrunderset"(1 kg )"("Lion")`