Here's why:
* Interphase is the period between cell divisions where the cell grows, replicates its DNA, and prepares for the next division. This is a long and active period.
* Mitosis (cell division) is a relatively short process compared to interphase.
* Meiosis (the process of producing gametes) also involves a period of interphase but is a specialized process that only occurs in germ cells.
While the exact duration of interphase varies between cell types and organisms, it typically accounts for the vast majority of a cell's life cycle.