TripleDoubleJ
Answered

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14. What happens during the development stages that happen between a
zygote and an embryo?
enestration

Sagot :

robertsonjourney53

Answer:

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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