Answer:
If mitosis would not take place, the life of the organism would become short.
This is because mitosis ( a process of cell division where parent cell forms two identical daughter cells) helps in the the renewal of damaged/ dead cells.
For instance, in case of skin epidermis ( outer layer of skin), the cells that become dead, keep on renewing ( as they shed/ fall off on continuous basis) with the help of mitosis.
Thus, if no mitosis would occur, there would be no renewal of the dead cells and the life will be shorten.
