Foetus at 1 month - Embryo
As the zygote grows, its inner group of cells will become the embryo. The outer group of cells will become the membranes that nourish and protect it.
Attribution: Avallain
As the zygote grows, its inner group of cells will become the embryo. The outer group of cells will become the membranes that nourish and protect it.
Attribution: Avallain