The correct answer is a neutral stimulus.
A neutral stimulus (such as a bell, or an object), that is repeatedly followed by unconditioned stimulus, eventually elicits a conditioned response. For instance, in Ivan Pavlov's famous classical conditioning study, he repeatedly paired a neutral stimulus (a ringing bell) that came before an unconditioned stimulus (food), and eventually the sound of the bell alone elicited a conditioned response (salivating) in dogs.
Answer:
1. Roman Invasion of Britain 2. Columbus reaches America 3. Victoria becomes Queen 4. First World War
Answer:The 14th amendment was a amendment that allowed people mainly blacks to have equal protection under the laws *which really didnt really work cus of 1960s segregation yunno that stuff*
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