List four important changes during adolescence.
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Start of puberty. Between 9 ½ and 14 years old.
First puberty change . Enlargement of the testicles.
Penis enlargement. ...
Pubic hair appears. ...
Wet dreams (nocturnal emissions). ...
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Sex Hormone secretion is started in boys and girls .Testrosen in boys and oestrogen in girls.
Boly saming started and become young.
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