In which trimester does the mother's cervix produce a thick mucus plug that seals off the entrance ...

In which trimester does the mother's cervix produce a thick mucus plug that seals off the entrance to the uterus?
 
  A) first
  B) second
  C) third
  D) All of the answers are correct.

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Which of the following tests is performed on a newborn to detect errors in the baby's metabolism?
 
  A) PKU
  B) Apgar
  C) bilirubin
  D) genetic

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Pregnancies are divided in to three
 
  A) semesters,
  B) quarters.
  C) trimesters.
  D) months.

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About how soon after ovulation can hCG be detected in the blood?
 
  A) 3 days
  B) 7 days
  C) 2 weeks
  D) 3 weeks

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Which of the following symptoms will a woman experience in the early weeks of pregnancy?
 
  A) no symptoms
  B) nausea, frequent urination, and food cravings
  C) swollen and sensitive breasts, fatigue, and mood swings
  D) All of the answers are correct.