Its most likely sexual behavior or climate
Answer:
Teen boys can be stupid because if they don't understand something then it's cause they don't care about it or is not interested. They should care about it but they choose not to because of their carelessness. Although, something in life could be happening to them that can cause them to change dramatically. Or, if they play a lot of video games, their minds will most likely only be focused on that. Sometimes teen boys don't understand such simple things that others can because they haven't gone through what others have or because they're not the same as them, physically, meaning that they can be a different gender or they could have some sort of disability (people with disabilities are not stupid. I'm saying how they're different in a respectful way).
Explanation:
:)
Answer:
B. Smooth muscle in the tunica media
Explanation:
Arteries contains elastic and smooth muscle fibers that helps in contraction and expansion, respectively. The smooth muscle fibers are present in the tunica intima which is the thickest and middle layer of arteries.
Connective tissues and endothelium don't play a direct role in contraction or expansion. However, elastin proteins helps in contraction.
Hope this help.
