Tropic levels and food chain

Question

What do you mean by the tropic levels? Specify how many tropic levels can a food chain have.

Answer 1

Tropic levels correspond to the positions on the food chain. Thus, the producers always belong to first tropic level and decomposers to last tropic level, consumers that eat directly and the producers belong to the second tropic level and so on.

There is no boundary regarding the number of tropic levels on the chain, as different orders of the consumers may exist.