What is an example of a type of cell that needs to divide quickly or frequently?
Skin cells, hair follicle cells, intestinal wall cells, etc.
Skin cells need to divide as you grow. Hair follicle cells divide to produce more hair. Your lining cells (ex: stomach) and intestinal wall cells need to divide to provide new surfaces.
Some cells like blood cells, nerve cells, and muscle cells do not divide after some time. They enter a state during mitosis known as G0 (g-zero), which is identified sometime during interphase of mitosis.