2. how does mass extinction affect species that survive?

a. there are no surviving species if a mass extinction occurs.

b. they will soon become extinct.

c. they combine gene pools.

d. they fill new roles in the changed environment.

the concept of nucleosome occupancy, which reflects the fraction of cells from the population in which a given region of dna is occupied by a histone octamer

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