Is a series of changes that cells go through during cell that results in 2 identical daughter cells.
a. mitosis; division
b. meiosis; division
c. mitosis; multiplication
d. meiosis; multiplication

Mitosis is a series of changes that cells go through during cell division that results in 2 identical daughter cells.

Explanation:

Mitosis is a process in which the cell segregates its DNA into its daughter cells which are duplicated by replication in the interphase stage of the cell cycle. In mitosis, two identical daughter cells are formed. The purpose of mitosis is the growth and repair of the cells.

desert perennials often survive by remaining dormant during dry periods of the year, then springing to life when water becomes available. most annual desert plants germinate only after heavy seasonal rain, then complete their reproductive cycle very quickly.

sheep is a herbivore animal whereas grasshopper belongs to the class chordates but both of them feed on greens.  

if grasshopper and sheep feeding on a pasture land, i do not think both of them will have any impact on each other. however, the number of the species can make difference. since sheep feed on greens, there is a possibility there left no pasture land for the grasshoppers or they may get extinct.