What type of relationship involves 2 people who don't share the same status

Catalina ate a candy bar and then went on a fast-moving ride in an amusement park. she was sick to her stomach after the ride and now, catalina cannot eat candy bars, because they make her nauseous. in this learned association, the candy bar serves as a(n) to catalina.

Describe the flow of blood represented by the diagram. include the following terms: nutrients, artery, capillaries, vein. ( me)

American college students invented football by combining what two sports?