Meiosis and fertilization are important processes because they may most immediately result in (1) many body cells (3) immune responses (2) genetic variation (4) natural selection

(2) genetic variation

Explanation:

Meiosis is the process whereby sexually reproducing organisms produce haploid (n) gametes or sex cells via division while fertilization is the fusion of the gametes (male and female) produced as a result of meiosis to form a diploid (2n) zygote.

Meiosis is a phenomenon that is unique to only sexual reproduction and it aims at producing daughter cells that are genetically different from the parent cell. A process called CROSSING OVER, which occurs only in meiosis, enables offsprings that results from the fertilization of the gametes produced by meiosis to exhibit GENETIC VARIATION i.e. difference in genetic content from parent cell.

the answer is: they occur when the sun, moon, and earth are aligned. in spite of their name, these tides occur twice a year in the spring and fall.