Here's why:

* Mitosis: This process creates two identical daughter cells from a single parent cell. It's used for growth, repair, and asexual reproduction. There's one round of division, resulting in two diploid cells.

* Meiosis: This process creates four genetically unique daughter cells from a single parent cell. It's used for sexual reproduction. There are two rounds of division, resulting in four haploid cells.

Let me know if you want a more detailed explanation of each process!