Gabriel is in his Human Development class and is surprised to learn that he produces sperm cells __________ and that an average of __________ sperm are released during a single ejaculation
a. for two hours at night; 20 million
b. 12 hours a day; 75 million
c. 18 hours a day; 125 million
d. 24 hours a day; 200 million
Answer: D
Psychology
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