Which part of an embryo differentiates into the muscles,skeleton,connective tissues,and circulatory and reproductive systems?
A) Mesoderm
B) Ectoderm
C) Endoderm
D) Periderm
Correct Answer:
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Q14: Amenorrhea is a _ sign of pregnancy.
A)presumptive
B)probable
C)positive
D)negative
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A)Manifests itself only
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Q33: Which of the following describes the amniotic
Q34: The umbilical cord does which of the
Q36: What results from increased water retention throughout
Q37: Which of the following is true of
Q38: Which statement describes the placenta's functions?
A)It produces
Q39: Which part of an embryo differentiates into
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