Skin cells are continuously replaced by the process called
Skin cells are continuously replaced by the process called mitosis. In humans, billions of body cells die every day. The most common form of cell division is called mitosis. It is used for growth and repair. During mitosis, a cell makes an exact copy of itself and splits into two new cells. Each cell contains an exact copy of the original cell. This is the reason why all the cells in an organism are genetically identical.