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Home Q & A Board Science-Related Homework Help Psychology Developmental Psychology
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9 years ago
The __________ houses blood vessels that join the embryo to the placenta.
a.   amnion   c.   umbilical cord
b.   amniotic fluid   d.   endoderm
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Children and Their Development

Children and Their Development


Edition: 3rd
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9 years ago
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9 years ago
My course has gotten a whole lot easier thanks to this.
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9 years ago
You're welcome.

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