The Old Spanish Trail ran through desert floors and plateaus and followed river tributaries through the present-day states of New Mexico<span>, </span>Colorado,Utah<span>, </span>Arizona<span>, </span>Nevada<span>, and </span>California<span>. It led north through </span>Utah<span> so that travelers could avoid the enormous Grand Canyon of the </span>Colorado<span> River</span>
D is the answer to the question. They had no trouble with immigrants
Answer:
d) conditioned stimulus
Explanation:
Conditioned stimulus: The term has been first used in the classical conditioning experiment and can be widely applied in the day to day life.
Therefore, the conditioned stimulus in classical conditioning is a stimulus that was neutral earlier and after being associated with an unconditioned stimulus then it gives rise to a conditioned response.
In the question above, for the dogs, the sight of this person was a conditioned stimulus.