Question

Which statement is a limitation of ecological pyramids?

Options

• They always handle species that occupy more than one trophic level.

• They assume a simple food chain, which almost never exists in nature.

• They accommodate a food web.

• They include saprophytes because they play a vital role in the ecosystem.

Answer 1

Ecological pyramids are based on a simple food chain. Such a simple linear arrangement almost never exists in nature.