The _____ starts to change FIRST when a boy reaches puberty.
A) penis
B) hair
C) voice
D) hips and chest
Answer: A) penis
Psychology
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A complex sound causes
a. the base of the basilar membrane to flex. b. many different parts of the basilar membrane to flex simultaneously. c. flexing of the middle portion of the basilar membrane. d. the tip of the basilar membrane to flex intensely. e. random flexing of the basilar membrane.
Psychology
What percentage of mothers in the United States and Canada currently breast feed?
50% 60% 70% 80%
Psychology