Answer:
Pavlov used proved his theory of classical conditioning by studying salivation in dogs. He observed an unconditioned response, the salivation, that was a consequence of an unconditioned stimulus (the meat). Then, he paired the unconditioned response with a neutral stimulus (the sound of a bell), by giving the dog the meat after ringing the bell. He found that after being conditioned, the dog salivated every time he heard the bell ring, the salivation was now a conditioned response.
Answer:
Among the options given on the question the correct answer is option B.
Mexican American
Explanation: The Mexican American was the ethnic group who fought for the immigration policy reform during 1960s. Because after the second world war there was a internment of Japanese in America as they were involved in the World War ll. There were a lot Mexican American workers in the America who took a large portion in the labor group.
However,the newly immigration policy was not favorable for the Mexican American workers. There was thousand of Mexican who were waiting on the other side of the border to get immigrated in the USA.
But the immigration law was not suitable for this. As a result the Mexican American workers fought to reform the policy.
Separation of powers refers to our checks and balances system which ensures each body of government cannot over power the others.
The correct answer is D. They mapped trails and helped build forts
Explanation
Mountain men are a group of people who lived in the western mountains of the United States. These mountains were characterized by being difficult to access, so there were no roads in this area, and it did not have many human settlements. Once the idea of building and connecting the entire country was planted, the help of men who inhabited this area was needed to trace the roads and build them because they knew how to move and work on that terrain due to their extensive experience in that terrain. Therefore, the correct answer is D. They mapped trails and helped build forts
