The time estimate for a school physical would be ________ minutes

During pregnancy, a baby grows inside the mother's:

a. vagina c. uterus b. cervix d. placenta

Which one of the following statements about the effects of aging on the cardiovascular system is true?

A) A "normal" blood pressure may actually represent shock in a patient with chronic hypertension. B) The heart rate decreases to compensate for weakening of the heart muscle. C) An increased heart rate leads to an increase in cardiac output. D) The strength of cardiac contractions increases to compensate for a natural decrease in heart rate.