Final answer:
Rats easily acquire taste aversion when visual stimuli are used. If a rat consumes food that is visually associated with illness or nausea, it may develop an aversion to that food in the future.
Step-by-step explanation:
True. Rats easily acquire taste aversion when visual stimuli are used. Taste aversion is a type of conditioning in which an interval of several hours may pass between the conditioned stimulus (something ingested) and the unconditioned stimulus (nausea or illness). For example, if a rat consumes food that is visually associated with illness or nausea, it may develop an aversion to that food in the future.