Answer:
Extinction
Explanation:
In terms of psychology, extinction refers to the progressive weakening of a conditioned response that results in a reduction or absence of the behavior. it explains why a prior conditioned behavior of an organism would eventually stop and it can be observed in both classical conditioning and operant conditioning. As per the question, the extinction signifies stopping of the saliva of the dog in absence of reinforcement of the behavior.
This a metaphor. These two brothers represent two ways of the world which are in all people. The Indians doesn´t see them as right or wrong. They understand them as the straight mind and the crooked mind, the upright man and the devious man, the right and the left.
Answer:
A) colonist from settling west of the Appalachian Mountains
