How does paragraph 7 contribute to the development of ideas in the article?

Paragraph seven gives extra information about the main idea which is behavior and control of impulses in teenagers.

Explanation:

Laura Sanders the author of this article tries to explain through scientific investigation and evidence the changes in behavior that teenagers show, and the structure that she used in the paragraph leads the information from the presentation of the statement in the first paragraphs to the full explanation and evidence of the theory.

i don't think it's a good idea to threaten anyone at all.

nobody can answer this if you dont show us the shapes