Question

What is tropic level in biology?

Answer 1

Each hierarchical level in an ecosystem is knw as trophic level. Generally it has 3 or 4 level because energy is decreased at each increasing level.
or
A trophic level refers to a level or a position in a food chain or ecological pyramid. It is occupied by a group of organisms that have a similar feeding mode 

Answer 2

These r the different levels in which energy is passing to the next level of organism but only 10% energy pass on