Question

Define Trophic level

Answer 1

The various steps representing organisms in a food chain at which transfer of food and energy takes place are called trophic levels.

The various trophic levels are:

1. Green plants or producers constitute the first trophic level.
2. Herbivores or primary consumers belong to the second trophic level. For example:- snails, rabbit, deer, goat etc.
3. Carnivores or secondary consumers come under the third trophic level. For example:- snakes, frogs, small birds etc.
4. Large carnivores (top carnivores) or tertiary consumers constitute the fourth trophic level. For example:- eagle, tiger lion etc.