What is the importance of mitosis and meiosis?

Mitosis is cell divison. This cell division can be for growth, maturity, or to repair/replace damaged cells. Meiosis is bascially required for reproduction to take place. Meiosis produces gametes, which are required for sexual reproduction. Thus, mitosis is important for the individual's health and wellbeing. Meiosis is for the health and well being of the species.