What is exposed to antigen (virus) hoping to trigger an immune response? (the second letter is c the fourth letter is i and the seventh letter is i. yes this is a crossword)

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