Question

Most food chains are composed of ______.

Options

• 1 or 2 species

• 3 or 4 species

• 8 or 9 species

• more than 10 species

Answer 1

Most food chains are composed of 3 or 4 species.

Explanation:

Most food chains consist of 3 or 4 species because the energy transfer efficiency between trophic levels is low. As a result, food chains are usually short and consist of only a few trophic levels to maintain energy flow in the ecosystem. Longer food chains are rare because energy is lost significantly at each level, making it difficult to support many successive species.