Question

The fraction of energy available for transfer to the next higher trophic level is

• A. 90%
• B. 50%
• C. 10%
• D. 1%

Answer 1

The correct option is C

10%

1. Not all the energy from the lower levels gets transferred to the higher levels in an ecosystem. Only a small part of it is transferred to the higher levels.
2. According to the 10% law, only 10% of the energy of the total available energy at a certain level is available for transferable to the higher levels.

Hence, option C is correct.