Prior to puberty, testosterone ________ GnRH secretion.
A. inhibits
B. promotes
C. has no effect on
D. catalyzes
Answer: A
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Which statement is TRUE with regard to spermatogenesis?
A. The process is similar to oogenesis. B. Spermatogenesis occurs in one short process. C. Spermatogonia undergo mitosis to form spermatocytes. D. Primary spermatocytes undergo meiosis to form gametes.
The quantity of air that will flow into and out of the lungs depends solely on the radius of the respiratory airways
Indicate whether the statement is true or false
Fine, soft hair that covers the fetus is called ________.
A. lanugo B. fetal hair C. vernix caseosa D. colostrum E. primary hair
The sequence of arteries supplying most of the blood to either knee is ________.
A. abdominal aorta ? common iliac artery ? internal iliac artery ? femoral artery ? popliteal artery B. abdominal aorta ? common iliac artery ? deep femoral artery ? anterior tibial artery ? popliteal artery C. abdominal aorta ? common iliac artery ? external iliac artery ? femoral artery ? popliteal artery D. abdominal aorta ? internal iliac artery ? deep femoral artery ? anterior tibial artery ? popliteal artery