In a bird egg, the ________ provides the watery environment in which the embryo develops.
A) allantois
B) amnion
C) chorion
D) yolk sac
E) shell
Correct Answer:
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Q9: Which extraembryonic membrane lies immediately beneath the
Q10: During the embryonic stage, a hollow ball
Q11: _ is the developmental event that results
Q12: In a reptile egg, which membrane is
Q13: The nervous system forms from the:
A)ectoderm.
B)mesoderm.
C)endoderm.
D)yolk.
E)chorion.
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Q17: The embryo of the _ undergoes direct
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