Question

what is placentation ?

Answer 1

Hey Friend!

In zoology, Placentation refers to the formation, type, structure, arrangement of the  flattened circular organ in the uterus of pregnant eutherian mammals, nourishing and maintaining the fetus through the umbilical cord. 

In Botany, Placentation refers to the formation, type, structure, arrangement of the  part of the ovary wall to which the ovules are attached.
 
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Answer 2

Placentation refers to the formation, type and structure or arrangement of placentas. The function of placentation us to transfer nutrient respiratory gases, water from maternal tissue to growing embroy and in some instance to remove waste from embroy.
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