Answer:
Placenta
Explanation:
The placenta is an organ which are not permanent in a pregnant woman body and it functions is to help connect the fetus through the umbilical code to the uterine wall in other to allow the fetus to receive nutrient through the blood supply by the mother.
Placenta helps to fight against internal infection by blocking some kinds of viruses and bacteria from passing into the fetal circulatory system and help to removes waste products from the baby's blood.
