Which rare condition results in individuals who possess both ovarian and testicular tissues?
A) phimosis
B) cryptorchidism
C) hermaphroditism
D) orchiditis
C
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Normally menstruation occurs when ________.
A) blood levels of FSH fall off B) blood levels of estrogen and progesterone decrease C) blood levels of estrogen and progesterone increase D) the corpus luteum secretes estrogen
Which of the following drugs has as its basic purpose to reduce the work of breathing, increase the oxygen content of the blood, and reduce the work of the heart?
A) Oxygen B) Antivirals C) Insulin D) Antibiotics
Which of the following is NOT typically true about G proteins?
A. They act as second messengers. B. They can be stimulatory for second-messenger production. C. They can be inhibitory for second-messenger production. D. They can act as transducers for activated receptors by opening or closing ion channels.
Which of the following would slow down gas exchange between the blood and alveolar air?
A. An increase in membrane thickness B. A decrease in membrane thickness C. A decrease in nitrogen solubility D. An increase in respiratory rate E. An increase in alveolar surface area