Question

Energy transfer from one trophic level to another is

• A. 10%
• B. 5%
• C. 15%
• D. 20%

Answer 1

The correct option is A 10%

The amount of energy at each trophic level decreases as it moves through an ecosystem. As little as 10 percent of the energy at any trophic level is transferred to the next level; the rest is lost largely through metabolic processes as heat. The efficiency with which energy or biomass is transferred from one trophic level to the next is called as the ecological efficiency. Consumers at each level convert on average only about 10% of the chemical energy in their food to their own organic tissue (the ten-percent law).

Therefore, the correct answer is option A.