Ed is neat and self-disciplined, and he studies hard and gets good grades. He is ambitious. Which factor best describes him?

Antoine is conducting an experiment on the effects of room color on people's ability to concentrate. The dependent variable would be the

a. subjects' overall intelligence. b. size of the room. c. room color. d. ability to concentrate.

The Y chromosome has fewer genes on it than the X chromosome

Indicate whether the statement is true or false