Fact 1: Cells are programmed to divide only a set number of times.

Fact 2: Cell division is by mitosis .

Given the two facts above, answer the question "What occurs a set number of times?" with the following options: 
- evolution
 - respiration
 - waves
 - mitosis
 - photosynthesis
 - relocation
 - murmur
 - fever


 

    mitosis     