Sperm are activated by the secretion from the ________, a doughnut-shaped gland encircling the base of the urethra.
A. prostate gland
B. epididymis
C. bulbourethral gland
D. seminal vesicle
Answer: A
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A young man is having trouble maintaining his posture after drinking too much at a party. The afferent pathways of the postural reflexes most likely affected in this man is the
A. muscle spindles and temperature receptors. B. cerebellum. C. nociceptors and chemoreceptors. D. vestibular apparatus. E. the somatosensory cortex.
Why are cyanide compounds lethal to humans?
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An organ system is
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