Question

an automatic response established by training to an ordinarily neutral stimulus (like classical conditioning) is: estivation coevolution conditioned response instinct

Explanation:

To solve this, we analyze each option:

• Estivation: A state of dormancy in summer, not related to conditioning.
• Coevolution: Evolution of two species interacting, irrelevant here.
• Conditioned response: In classical conditioning, a learned response to a neutral stimulus after training (pairing with unconditioned stimulus). This matches the description.
• Instinct: Innate, unlearned behavior, not established by training.

Answer:

C. Conditioned response