That is correct- the heart pumps and the smooth muscles of arteries contract (also called constriction)
7. walking one mile every day
8. Have you developed healthy and supportive friendships
Maintenance of homeostasis is in a negative feed back loop because if the tempature gets too high the negative feedback loop acts to bring it back down.
I would say call his grandmother. Because maybe she call tell him about her experiences and help him get through his situation
