Mutualism commensalism and parasitism are the three types of

All three are forms of symbiosis

Explanation:

Mutualism is where both organisms benefit. Commensalism is where one benefits but the other organism isn't harmed.

Parasitism is where one organism benefits and the other is harmed.

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

the tricuspid valve is present between right atrium and right ventricle