Science differs from other disciplines, such as history and the arts, because science relies on ?

I'd say the answer is either proof or evidence.

Everything in science relies on proof. In history and arts, things don't work like that because there are not things to proof, there are no theories nor hypothesis.

If the answer turns out to be evidence, I won't be surprised because you need a base from where to formulate your ideas.

Hope it helped,

BioTeacher101

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