Final answer:
In classical conditioning, the unconditioned stimulus-response connection is unlearned or innate, whereas the conditioned stimulus-response connection is learned through association.
Step-by-step explanation:
In classical conditioning situations, the unconditioned connection is unlearned, but the conditioned connection is learning. In classical conditioning, associations are made between a neutral stimulus and an unconditioned stimulus which naturally and automatically triggers a response, leading to a learned or conditioned response. For example, in Pavlov's experiments, dogs were conditioned to salivate, which is a natural unconditioned response when they see or smell their food, to a previously neutral stimulus, the ringing of a bell. After several pairings of the bell with the food, the dogs learned to associate the bell with the food, resulting in salivation just to the sound of the bell, which became a conditioned response to a conditioned stimulus.