Question

when and how does the embryo develops​

Answer 1

Answer:

it take around nine months for the zygote to develop in to a foetus

Answer 2

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First, the zygote becomes a solid ball of cells. Then it becomes a hollow ball of cells called a blastocyst. Inside the uterus, the blastocyst implants in the wall of the uterus, where it develops into an embryo attached to a placenta and surrounded by fluid-filled membranes.

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