Only about which percentage of the kilocalories in a trophic level is passed to the next trophic level (e.g.from autotroph to primary consumer)?
A)5%.
B)10%.
C)15%.
D)20%.

Question

Quizplus · Accepted Answer

Only about 10% of the energy from one trophic level is passed on to the next trophic level. This is known as the 10% law, which states that only 10% of the energy is transferred from one level to the next due to energy lost through respiration, feces, and heat. The remaining 90% is lost as heat or used by the organism at that level of the food chain. This means that each successive trophic level has less energy available to it, which is why food chains tend to be relatively short.

Only About Which Percentage of the Kilocalories in a Trophic