How an embryo is formed from a zygote?
The zygote is the initial stage in baby development. It is also known as a fertilized ovum formed from the union of the sperm cell and the egg cell. Within hours after sperm meets egg, the zygote divides and then continues to divide (and divide). Foetus refers to the final stage in baby development. An embryo is termed as the fetus at the beginning of the 11th week of pregnancy.
So, the correct option is By repeated divisions.