Question

1. a student is constructing a trophic pyramid to represent the flow of energy in a grassland ecosystem. her teacher reminds her that, due to the second law of thermodynamics, only a small portion of energy from one trophic level is available for transfer to the next level, with much being lost as heat or used for metabolic processes. what percentage of energy, on average, is available to be passed on to each successive level of the trophic pyramid? 90% 10% 1% 50%

Explanation:

In an ecosystem's trophic pyramid, on average, about 10% of the energy from one trophic level is available to be passed on to the next level. This is due to energy loss as heat or use in metabolic processes.

Answer:

C. 10%