3. In paragraph 7 the author writes, "adolescent-typical behaviors can be seen across cultures." Why is it significant that these behaviors exist in many different cultures?

Explanation:It is significant because it not only does it show that it affects many people, but many races, and that it isn't specific to one race. Saying it's specific to one race could create an unfair stereotype, but specifying that it could happen to anyone shows that it affects everyone, and isn't based off skin color or ancestors.