Answer:Unconditioned response; conditioned response
Explanation: in classical conditioning ,unconditioned response refers to an environmental stimulus which occurs naturally and automatically and triggers a natural response that has not been learned before , this response is called unconditioned response. Like when you cut an onion you will automatically shed an ear.
Conditioned stimulus is previously neutral stimulus such as a bell which is associated with an unconditioned stimulus which is meat , after this association the conditioned stimulus will start to trigger the same response as unconditioned stimulus , this response is a referred to as a conditioned response.
When the price level falls, businesses are unable to sell their products at a price high enough to cover costs they have already incurred, putting producers at risk of failure
Explanation:
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The Appalachian Mountains rise to heights of about 3,000 feet.
