1. In Pavlov's experiments, the dog's salivation triggered by the taste of food was a(n)
A) conditioned response.
B) unconditioned response.
C) unconditioned stimulus.
D) conditioned stimulus.

2. In Pavlov's experiments, the dog's salivation triggered by the sound of the tone was a(n)
A) conditioned response.
B) unconditioned stimulus
C) unconditioned response.
D) conditioned stimulus.

3. If a tone causes a dog to salivate because it has regularly been associated with the presentation of food, the tone is called a(n)
A) unconditioned stimulus.
B) primary reinforcer.
C)conditioned stimulus.
D) immediate reindorcer