Answer:
(1) The placenta transfers food from the mother’s bloodstream to the fetus thus providing it with all the basic nutrients.
(2) Oxygen from the mother reaches the unborn child through the placenta.
(3) The placenta also purifies the blood of any harmful substance, which might harm the fetal health, by acting as a barrier and providing protection against it.
Step-by-step explanation:
I hope this helped! ^^