The ________ is formed by the allantois, blood vessels, and yolk sac.
A) umbilical cord
B) chorion
C) chorioallantoic membrane
D) trophoblast
E) amnion
Correct Answer:
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Q36: Which of the following is false concerning
Q37: The solid ball of cells that has
Q38: The ectoderm forms
A) muscle.
B) blood.
C) neural tissues.
D)
Q39: The penetration of the endometrium by the
Q40: The mesoderm forms
A) muscle.
B) epidermis.
C) the brain.
D)
Q42: The outer layer of the blastocyst that
Q43: Which embryonic germ layer forms the linings
Q44: Which of the following is not one
Q45: The extraembryonic membrane that forms a fluid-filled
Q46: The process by which a viable embryo
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