What are the trophic levels? Give an example of a food chain and state the different trophic levels in it.

The transfer of food or energy occurs at several levels in the food chain, and these levels are referred to as trophic levels.

Example:

Grass → Goat → Man

In the food chain,

1. The first trophic level is represented by grass.

2. The second trophic level is represented by goat.

3. The third trophic level is represented by man.