The greatest impact on human settlement in Iraq historically and today is most likely the access to resources. The Euphrates and Tigris Rivers have historically been the most important resources in Iraq since the age of Mesopotamia. Today other resources such as oil and others have led to human settlement, but these rivers remain major drivers of settlement in Iraq.
Answer: Conditioned stimulus.
Fear conditioning refers to a learning behaviour in which an aversive stimulus is paired with a neutral stimulus, up to the point in which the neutral stimulus elicits the same response as the aversive one, even when not paired together.
Before the experiences, the doctor was a <u>neutral stimulus</u> because his effect did not depend on previous experience. The <u>aversive stimulus</u> was the shots. The pairing of the doctor with the shots repeatedly elicits the <u>conditional response</u>, which is the crying. It also turns the doctor into a <u>conditioned stimulus</u>.
Spencer trusted that exclusive the fittest society would get by after some time, prompting general up reviewing of the world overall. Herbert Spencer was a noteworthy figure in the scholarly existence of the Victorian time. He was one of the vital advocates of developmental hypothesis in the mid nineteenth century, and his notoriety at the time matched that of Charles Darwin.
