Biology, asked by jaiswalparo7212, 10 months ago

After fertilization placenta turns to​

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Answered by maruti4
3

Answer:

About 6 days after fertilization, the blastocyst attaches to the lining of the uterus, usually near the top. This process, called implantation, is completed by day 9 or 10. ... Some of the cells from the placenta develop into an outer layer of membranes (chorion) around the developing blastocyst.

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