Question

heterotrophic fungi __________
○ acquire nutrients from a wide variety of substrates.
○ acquire nutrients from the sun
○ acquire nutrients from dead plants and animals
○ live on the body of living animals or plants.

Explanation:

Heterotrophic fungi obtain nutrients by breaking down organic matter. They can use a wide range of substrates (including dead organic matter, but also other organic sources in different ecological roles like symbiotic or parasitic, but the broadest accurate statement here is that they acquire nutrients from a wide variety of substrates. The option "acquire nutrients from the sun" is incorrect as fungi are not photosynthetic. "Acquire nutrients from dead plants and animals" is too narrow (some are parasitic on living hosts, some are symbiotic, etc.). "Live on the body of living animals or plants" is also narrow (many are saprobic on dead matter). So the correct option is the first one.

Answer:

A. acquire nutrients from a wide variety of substrates.