The process of spermatogenesis and spermiogenesis begins with a ________ and ends with four ________
A) secondary spermatocyte; spermatocytes in general
B) sperm cell; sustentacular cells
C) sperm cell; interstitial cells
D) germ cell; gametes
E) secondary spermatocyte; germ cells
D
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When a partial pressure gradient exists for a gas, it will move from the area of its lower partial pressure to the area of higher partial pressure
Indicate whether this statement is true or false.
Betsy took a fall and broke her arm, which required that she wear a cast for a prolonged period of time. When she took the cast off, she was alarmed to see that her muscles
A. had undergone hypertrophy. B. seemed to have an increase in blood flow. C. looked the same as they did before the fall. D. had undergone atrophy.
Discuss the mechanisms by which body cells generate adenosine triphosphate (ATP)
What will be an ideal response?
If the pulmonary ventilation rate is 3200 ml/minute with a tidal volume of 400, the respiratory rate is ____ breaths per minute
a. 6 b. 8 c. 14 d. 16 e. 20