______is the process in which the diploid living organism develops from a zygote through repeated cell divisions.

 

Solution: Mitosis may be a prepare where a single cell separates into two indistinguishable girl cells (cell division). During mitosis one cell? partitions once to create two indistinguishable cells. The major reason of mitosis is for development and to supplant worn out cells.

Hence, the correct answer is option 3.