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Thierryp Thierryp
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Posts: 1064
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6 years ago
Implantation occurs when
A) the sperm penetrates the egg.
B) the blastocyst becomes a zygote.
C) the egg is released into the fallopian tubes.
D) the blastocyst lodges in the uterus.
Textbook 
Choosing Health

Choosing Health


Edition: 2nd
Authors:
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Sooner or later, those who win are those who think they can.
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RaecocoRaecoco
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Posts: 462
6 years ago
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