Approximately what percentage of 18- to 25-year-olds in the United States and Canada are of African, Latino, Asian, or Native American descent?

Which of these is most likely to be accomplished by using operant conditioning principles?

a) having an infant blink to a noise b) getting a dog to salivate to a bell c) teaching a dog to roll over and beg d) dropping a hot pan that you picked up from the stove

Harriet has lost the ability to recognize faces, and she has also lost the ability to detect the emotions that other people are feeling. You would expect to find damage to her

a. left hemisphere. b. right hemisphere. c. midbrain. d. cerebellum.