Puberty begins with
A) the appearance of secondary sex characteristics.
B) the first ejaculation for boys.
C) menarche for girls.
D) the age of eight.
A
Psychology
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In their classic work on pain, Fordyce and colleagues demonstrated the superiority of a ________ approach to the treatment of back pain
a) cognitive b) behavioural c) medical d) interpersonal
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Research surveys have shown that __________ of high school seniors have used marijuana in the last year
a) 36 percent b) 50 percent c) 64 percent d) 72 percent
Psychology