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Home Q & A Board Science-Related Homework Help Psychology Developmental Psychology
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Ayeaye Ayeaye
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9 years ago
The ________ exists in only rudimentary form at the end of embryonic period.
a.   amnion
b.   nervous system
c.   placenta
d.   circulatory system
e.   umbilical cord
Textbook 
The Developing Child

The Developing Child


Edition: 13th
Authors:
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danielle2018danielle2018
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9 years ago
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Ayeaye Author
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#2
9 years ago
How do you know so much! You're some kind of genius lol Thank you
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#3
9 years ago
You're welcome!
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