In order to appreciate the importance of the cell membrane, compare a cell membrane to a window screen. Both the cell membrane and a window screen allow certain things to pass through it, but keeps other things out. What are some things that can pass through a window screen? What are some things that cannot pass through a window screen? Why is it important to keep these things from moving through the screen?

explanation:

on disadvantage of hydroelectric power is the cost. another disadvantage of using hydroelectric power is finding a water source powerful enough to harvest hydroelectric power.

haploid cells;

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