Make a forest, grassland & a an aquatic food chain. Name the various trophic levels
A trophic level is a level of species in an ecosystem on the basis of the source of nutrition such as producers, primary consumers, secondary consumers, etc.
The producers form the first trophic level as they manufacture food. The primary consumers form the second trophic level, the secondary consumers form the third, and the tertiary consumers form the fourth trophic level.
Here is the diagram of the terrestial food chain
This diagram represents the aquatic food chain