Question

how does the embryo get nourishment inside the mother's body?

Answer 1

hey here is your answer
After fertilization the lining of uterus thickens and is richly supplied with blood to nourish the growingembryo. The embryo gets nutrition from the mother's blood with he help of a special tissue called placenta. It is embedded in the uterine wall.
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Answer 2

How does the embryo get nourishment inside the mother's body?

The embryo get nourishment from the mother's body through Placenta.

In the Placenta, the foetal blood comes in close contact with the maternal blood.

Here, exchange of material between the Mother's blood & the foetal blood take place.