a human or animal that is still growing inside its mother
Some doctors say that what a mother eats has a big effect on her embryo.
In the early stages of development, the human embryo undergoes rapid cell division.
The study of embryology focuses on the formation and growth of embryos.
Protective structures like the amniotic sac surround and nourish the developing embryo.
During embryogenesis, various organs and tissues differentiate from the embryonic cells.
