Give reasons : (i) Placenta is extremely essential for foetal development. (ii) Uterine lining becomes thick…
Give reasons :
(i) Placenta is extremely essential for foetal development.
(ii) Uterine lining becomes thick and spongy after fertilisation.
Solution
(i) Placenta is extremely essential because it
provides nutrients /glucose / oxygen to the growing embryo.
removes waste generated by embryo by transferring them into mother's blood through it.
(ii) Uterine lining becomes thick and spongy which is required to provide nourishment to the fertilised egg (embryo).