The immediate precursor of estradiol-17? is
A) Androstenedione.
B) Dihydrotestosterone.
C) Progesterone.
D) Testosterone.
Answer: D
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The production of sperm and egg cells is called __________.
Fill in the blank(s) with the appropriate word(s).
Fever blisters or cold sores are caused by the ________ virus.
A. Herpes varicella B. Herpes zoster C. Herpes simplex type 1 D. decubitus
Increased pressure in the eye caused by an accumulation of aqueous humor is called astigmatism.
Answer the following statement true (T) or false (F)
One of the major problems a premature infant may develop is respiratory distress syndrome. This occurs because in a premature infant
A. oxygen transport is impaired. B. surfactant isn't produced. C. the lungs are collapsed. D. there aren't enough red blood cells to carry oxygen. E. there is mixing of the arterial and venous blood.