Question

explain why the embryo must be placed in the uterus of foster mother?

Answer 1

the embryo must be placed in the uterus of mother because in the inner lining of uterus the placenta is present which provides nutrients to the embryo and helps in removing waste material from the embryo's body..

Answer 2

Because after the embryo get embedded in the soft lining of uterus the embryo starts grow till it fully grown