HELP PLEASE I HAVE AN F

the nut is the producer, the squirrel is the primary consumer.

the fish is the primary consumer, the bear is the secondary consumer

the leaf is the producer, the caterpillar is the primary consumer

the worm is the primary consumer, the bird is the secondary consumer.

Explanation:

please mark as brainliest

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