The first visible sign of sexual maturity in boys is usually
A. the growth of testicles.
B. the development of body hair.
C. the appearance of facial hair.
D. deepening of the voice.
Answer: A
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A. Catholicism B. Rastafarianism C. Hindu D. Aztecan
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a. respiratory rate b. urine output c. heart rate d. blood pressure
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Indicate whether the statement is true or false