What is meant by trophic levels?

The position it holds in the food chain

Explanation:

A food chain is a succession of organisms that eat other organisms and may, in turn, be eaten themselves.

the areas around the equator

some fungi obtain their nutrients from a living host (plant or animal) and are called most biotrophic fungi have fairly narrow host ranges—they are specialized on a limited called rhizomorphs that allow the fungus to grow from one tree to another. ascospores are formed inside a sac-like structure called an ascus. so your answer is a