Question

what is placenta write any two major factor of placenta

Answer 1

placenta is a specialised tissue found in uterus,it contains blood filled vessel networks in mother's and embryo's space.placenta helps in the transfer of food and minerals for the foetus trough those vessel networks.The placenta also acts as a passage for gas exchange in the uterus.during the foetal development stage the wastes excreted by the young one is ridden out of the body trough placenta.

You can choose any of those points....hope it helps!