Fig. 4. The dolphin-like distribution of the cells with different states.

The changes of the cell states follow the dolphin-like distribution instead of a linear distribution. The Db and Da states are distributed in the head and the tail, respectively, while Se in the abdomen and Sc in the back. According to the CellState formula, when the S value of the cells moves away from 1, the cells are more likely in the declined states and thus less likely to divide. The cells in the head or tail (Da and Db) are no longer dividing. However, if the S value of the cells approach 1, the cells are more likely to divide, but the closer the cells to the back of the dolphin, the stronger dividing the cells shown, the more difficult their dividing capability can be controlled. It should be considered that the values of the dividend and divider of the formula represent the level of corresponding factors and relate to the capacity of cell division.