These clouds appear fibrous or curly. They are high, thin, white, feathery clouds made of ice crystals. They are associated with fair weather, but they can indicate approaching storms too. Which type of cloud is this?

These are known as Cirrus clouds.

Explanation:

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

b a mature ovary of a plant.