" R Which are different trophic levels in food chain? "

Which are the different trophic levels in the food chain?

Trophic levels in a food chain are formed of :

How many trophic levels occur in food chain ?

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

Food chains are very important for the survival of most species Which of the following limits the number of trophic levels in a food chain?