Multiple Choice
At least in Western, industrialized nations, the age of the onset of puberty has decreased 3-4 years in the last century. This probably reflects:
A) improved medical care and living conditions.
B) changes in the genetic makeup of people.
C) poor diets that are high in junk foods.
D) the emphasis on strenuous daily exercise and sports.
Correct Answer:

Verified
Correct Answer:
Verified
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