Question

16 multiple choice 1 point
which statement best explains why there are fewer predators at the top of an energy pyramid compared to the lower trophic levels?
the lower trophic levels have less energy because they are mostly herbivores.
the top predators have more biomass available to them so grow larger and larger in size.
there is less energy available at the higher trophic levels, so fewer organisms can be supported in an ecosystem.
there is more energy available at the higher trophic levels, so they organisms have larger and larger bodies to use that energy.

Explanation:

Energy transfer between trophic levels is inefficient, with only ~10% of energy moving up each level. This means higher trophic levels (like top predators) have far less total energy available, so the ecosystem can support fewer individuals at these levels. The other options are incorrect: lower trophic levels have the most energy, top predators do not have more biomass available, and higher levels have less, not more, energy.

Answer:

C. There is less energy available at the higher trophic levels, so fewer organisms can be supported in an ecosystem.