Khayrat's father wants to encourage him not to swear, so whenever Khayrat uses a curse word, he has to put a quarter in the "swear jar." This choice of punishment should be categorized as:

According to _____, color vision evolved because perceiving color helped our early ancestors find edible food

A) binocular theory B) Gestalt theory C) opponent process theory D) trichromatic theory

Wayland is studious and works very hard on his course work. Based on research, it is likely that his friends

a. also work hard at school. b. spend little time studying. c. think he works too hard. d. come to him for help.