Bill, a middle school student, goes to the cafeteria, opens his lunch, and immediately feels hungry upon seeing his food. after a week of eating in the cafeteria, bill feels hungry as soon as he enters the cafeteria. after another week, bill becomes hungry when the bell rings to signify that it’s lunchtime, before he even gets to the cafeteria or sees his food. identify the stimuli and response.

This is classical conditioning.

The conditioned stimulus is, at first, entering the cafeteria. Later it becomes hearing the lunch bell ring.

The conditioned response is bill feeling hungry.

c.it was a major banking and commerce center.

d.leonardo da vinci

d. to fix corruption and problems in the catholic church

d. to reform the catholic church from within

a. human faces are presented in an idealized, spiritual manner.

buildings sir and respect