The extraembryonic membrane that is the source of primordial germ cells is the
A) allantois
B) amnion
C) chorion
D) yolk sac
E) placenta
Correct Answer:
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Q27: The cells that give rise to the
Q28: The cells around the periphery of a
Q29: The hormone secreted by the trophoblast cells
Q30: The temporary organ that functions in the
Q31: The two fundamental processes that occur during
Q33: The term gestation refers to the
A) period
Q34: All of the following are derived from
Q35: The primary germ layers that develop during
Q36: The opening between the right atrium and
Q37: The vessel that carries oxygenated blood from
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