This is my questions tht I’m struggling on

rocks and weathering-matching

the correct answer is:

a population changes in response to a change in the environment.

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