How does developing embryo gets its nouroshment inside the mother 's body ?

(i) Metal A belongs to period 3 and group 13. A in red hot condition reacts with steam to form B. A with strong alkali forms C> find A, B and C with reactions. (ii) How does developig embryo gets its nourishment inside the mother's body?

Explain how the developing embryo gets nourishment inside the mother's body.

How does the embryo get nourishment inside the mother's body?

How does the embryo get nourishment inside the mother's body ?

How does the embryo get nourishment inside the mother's body?

How does the embryo get nourishment inside the mother's body?