Answer
4. a. chorion
Work Step by Step
The chorion is the fetal part of the placenta.
Human Biology, 14 Edition
by Mader, Sylvia; Windelspecht, Michael
Published by
McGraw-Hill Education
ISBN 10:
1-25924-574-8
ISBN 13:
978-1-25924-574-9
Chapter 18 - Assess - Page 409: 4
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