The _____ of an embryo differentiates into the digestive system and the respiratory system.
A) mesoderm
B) ectoderm
C) endoderm
D) periderm
Correct Answer:
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Q12: Which of the following is true of
Q13: In a normal pregnancy,the fetus turns in
Q14: Amenorrhea is a _ sign of pregnancy.
A)presumptive
B)probable
C)positive
D)negative
Q15: Which of the following is true of
Q16: Which of the following is true of
Q18: Which of the following is true of
Q19: The _ of an embryo differentiates into
Q20: Which of the following functions does the
Q21: Which of the following is true of
Q22: Which of the following is true of
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