Question

Most food chains are composed of how many trophic levels?

• A. More than 16
• B. 3 or 4
• C. 1 or 2
• D. 9 or 10

Answer 1

The correct option is B

3 or 4

The maximum number of trophic levels is hardly 3 to 5 in terrestrial ecosystems and 4 to 6 in aquatic ecosystems. The lesser number of trophic levels is due to consumption of lot of energy through respiration.