What is this ?

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 term defines one's age as measured by how well the body is working? chronological age biological age social age mental age

Which of the following is a nonspecific defense against pathogens? - b cells - antibodies - t-cells - inflammation