LIFE SCIENCE

Detailed explanation-1: -At each step up the food chain, only 10 percent of the energy is passed on to the next level, while approximately 90 percent of the energy is lost as heat.

Detailed explanation-2: -Based on Lindemans trophic efficiency law, the 10% of energy is transmitted from one trophic level to another successive trophic level. The remaining energy is 90% of energy that is released or lost during transition of energy from one trophic level to another higher trophic level.

Detailed explanation-3: -The other 90% is used for life processes, such as photosynthesis, respiration, reproduction, digestion; and ultimately transformed into heat energy before the organism is ever consumed. This pattern of energy transfer continues with each successive level of the pyramid.