There are four phases to the cell cycle: G1, where the cell grows; S phase, where DNA is duplicated; G2, where the cell makes final preparations for cell division; and M phase, where the cell enters mitosis. Mitosis, or cell division, is only a small part of the cell cycle
Explanation:
A- meiosis
B- zygote
Cell B is described as diploid cells because two haploid cells n(40) fuses together to form diploid cell 2n(80)