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Biology, 02.03.2021 21:50 Piercey4642

From where do the placenta and umbilical cord develop? outer cells of the blastocyst
inner cells of the blastocyst
directly from the uterus
directly from the ovary

Ya um forget the human body let’s give our students “ s 3 x e d “


From where do the placenta and umbilical cord develop?

outer cells of the blastocyst
inner cells

ansver
Answers: 3

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From where do the placenta and umbilical cord develop? outer cells of the blastocyst
inner ce...
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