Question

what is plasenta?write it's function

Answer 1

Placenta is the circular organ present in the uterus of pregnant mammals which is required for the nourishment and maintenance of the fetus. It performs various function like: 1) Nutrition : It helps to transport nutrients from mother's blood to foetus for its development.

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Answer 2

placenta is a covering around the zygote formed. it helps in the transportation  of food material and helps in the excretion of harmful materials like urea.