Multiple Choice
In land vertebrates,the function of the chorion is to
A) become umbilical cord.
B) enclose the entire embryonic system and then fuse to form the chorioallantoic membrane.
C) grow from the embryonic hindgut to become a repository for the wastes of metabolism.
D) surround the embryo and provide a marine environment for development.
Correct Answer:

Verified
Correct Answer:
Verified
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