Every morning a graduate student turns on the light in the laboratory and then feeds the fish in the aquarium. after a couple of weeks of this routine, the graduate student notices that the fish come to the surface to feed as soon as the lights are turned on. the behavior of the fish is most likely a result of

The behavior of the fish is most likely a result of CLASSICAL CONDITIONING.

Explanation:

Classical conditioning refers to the learning process that occurs when two stimuli are repeatedly pair for a number of times. The two stimuli that are repeatedly pair in this question are turning on of light and feeding the fish. Each time the graduate student turns on the light, he usually proceed by feeding the fish. With time, the fishes have learned this process and each time the light is turned on they immediately swim to the surface to feed because they have paired the turning on of light with feeding.

stress fractures occur largely in the feet and legs and are common in sports that require repetitive impact, primarily running/jumping sports such as gymnastics or track and field.