A pigeon is reinforced with food every 30 seconds. As the 30-second mark nears, the pigeon can be seen getting more and more excited. The ability to "expect" the reinforcement illustrates the importance of in the conditioning process.

Cognition                    

Explanation:

Cognition: In psychology, the term "cognition" is described as a phenomenon that involves various mental processes that are being utilized by an individual in the process of gaining comprehension and knowledge. However, the process of cognition involves problem-solving, remembering, judging, thinking, and knowing. This is considered as "higher-level functions" associated with an individual's brain and includes planning, language, perception, and imagination.

In the question above, the given statement represents cognition.

the answer is solomon northrup. he was a free-born african american, abolitionist and professional violinist that was drugged, kidnapped and sold as slave in 1841 and remained in captivity until 1853 where he regained his freedom with the of the then-governor of new york, washington hunt. he wrote and published his memoirs "twelve years a slave" in 1853, and in this text, he tells the story of his escape thru one of louisiana's swamps (the great pacoudrie swamp) in which he ended up covered in green slime from crossing the surface of the dead water.

answer; adoption agencies tend to place separated twins in similar homes;