Which structure gives rise to structures of face, neck and mouth?
A) primitive streak
B) neural tube
C) notochord
D) pharyngeal arches
E) somites
Correct Answer:
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Q20: HCG is secreted by the _.
A)blastocyst
B)ovary
C)hypothalamus
D)anterior
Q21: Which structure gives rise to the axial
Q22: Blood vessels that will enter the umbilical
Q23: Migrating cells move around the developing embryo
Q24: Which structure gives rise to the brain
Q26: The notochord forms from which type of
Q27: As structures rearrange during early development the
Q28: The placenta takes over progesterone production at
Q29: Genetic programmed cell death _.
A)occurs during
Q30: Which extraembryonic membrane produces early blood cells
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