Question

What are trophic levels and explain trophic levels with help of a ecological pyramid

Answer 1

Trophic level is the group of organisms within an ecosystem which occupy the same level in a food chain. There are five main trophic levels within a food chain, each of which differs in its nutritional relationship with the primary energy source. The primary energy source in any ecosystem is the Sun (although there are exceptions in deep sea ecosystems).

Answer 2

(1) Each level in the food chain is called a trophic level.

(2) A trophic level is the step at which the organism obtains its food in the chain.

(3) The amount of matter and energy gradually decreases from producers at lowest level to top consumers at the highest level.