If food is presented to a pigeon every time the pigeon pecks a key, then the pigeon's behavior is on a schedule of reinforcement.

there is often only a small difference between what is legal and what is ethical when working with competitive intelligence..

answer; i had to look this up and the only one i found was(last only 15 minutes) plz check first and good luck;

answer; /// the correct answer is (a) burned the city;

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.