The photoreceptors that number five million in each eye and work best in bright light are the

Most people will eat more M&Ms when they are available in a bowl of 10 colors than a bowl of 7 colors

Indicate whether this statement is true or false.

Cross-cultural studies of color names in a wide range of languages concluded that

a. color names are purely cultural conventions. b. the physiology of the visual system and cultural conventions determine the selection of color names. c. with the exception of black and white, the selection of focal colors varied among cultures. d. nonfocal colors reflect nature, but focal colors reflect cultural conventions. e. there are three basic color groupings agreed upon regardless of culture.