50.4k views
3 votes
what happens during implantation? &The embryo is developed enough to be called a fetus at the end of which stage?

User Iansen
by
7.6k points

1 Answer

4 votes
by the Time the zygote reaches the uterus, the dividing ball of cells has separated into two sections.The inner group of cells will become the embryo. The outer group will become the cells that nourish and protect it.
2. The embryonic period
User PeterN
by
7.6k points