would predict that a young boy is likely to repeat a behavior, like talking back to his teacher, when it is rewarded by his friends

Sariah enters a room with several chirping crickets in it. upon first entering the room, sariah can hear the chirping; however, as she begins to talk to her friends, she is no longer aware of the chirping even though it is still there. the fact that sariah no longer perceives the chirping sound demonstrates sensory

11. why do citizens have to register to vote?

What important race leader of the early twentieth century is being described?