PSYB30H3 Chapter 5: PSYB30 Chapter 5

39. To understand certain traits in animals, plants, and other microorganisms, behavior geneticists take advantage of the speed of in their experiments. a genetic drift b. natural selection c. adaptation d. artificial selection

L. Roderick has hostile thoughts and acts in a more hostile manner than most people. Roderick's behavior tends to offend most people and in turn creates an environment of hostility to which Roderick reacts with even more negative thoughts and behaviors. Roderick is caught up in

25. In negative reinforcement, a. an organism's responding is influenced by the observation of others' behavior. b. an organism engages in a response that brings aversive stimulation to an end. c. a neutral stimulus acquires the ability to elicit a response. d. an organism engages in a response that causes aversive stimulation.