Removal of nitrates and phosphates

The methods for removal of phosphate and nitrate involve the usage of polymer hydrogels and crystallization process using coal fly ash.

Explanation:

I looked this up, the question is very vague, so I can't be sure if this answers your question.

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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