Can anyone help me with my homework

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.

Which disease is caused by a buildup of plaque in blood ves

The presence of aids in a community often increases its level of property what is one of the main reasons for this