Human Growth and Development CLEP Prep Practice Exam

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At what age does secondary sexual characteristics become evident?

  1. During childhood

  2. At the beginning of adolescence

  3. During the late teenage years

  4. During adulthood

The correct answer is: At the beginning of adolescence

Secondary sexual characteristics become evident at the beginning of adolescence, typically around the age of 12-13 for girls and 14-15 for boys. Childhood (option A) is too early for these changes to occur and adulthood (option D) is too late. While some secondary sexual characteristics may continue to develop during the late teenage years (option C), they are primarily evident at the beginning of adolescence.

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