Which of the following statements about the timing and variations in puberty is true?
A)Children in European countries mature up to a year earlier than their American counterparts.
B)For girls,menarche is considered within the normal range if it appears between the ages of 9 and 15.
C)Genes have little to do with when and how puberty develops.
D)Non-Latino White girls experience puberty earlier than African American girls.

Question

Quizplus · Accepted Answer

The age range of 9 to 15 years old is considered normal for the onset of menarche (the first menstrual cycle) in girls.

Answer: A
 Research has found that children in European countries tend to experience puberty earlier than their American counterparts.

Answer: D
 African American girls tend to experience puberty earlier than non-Latino White girls, which is a variation in the timing of puberty based on ethnicity.

Answer: C
 This statement is not true. Genetics play a significant role in the timing and variations of puberty.

Which of the Following Statements About the Timing and Variations