Question

when energy is transferred between living things, how much of the original energy is lost as heat? 30 percent 10 percent 90 percent 50 percent

Explanation:

In an energy transfer between living things (such as in a food chain), about 90% of the energy is lost as heat. This is based on the 10% - 90% rule in ecology. Only about 10% of the energy is passed on to the next trophic level, and the remaining 90% is lost as heat (through metabolic processes like respiration).

Answer:

90 percent