How many states do not permit an offender to be sentenced to death?

The small adjustment that is necessary to help people synchronize the human internal "pacemaker" with a 24-hour cycle is brought about by

a. the rods and cones of the eye. b. exposure to sunlight. c. the consumption of food. d. the changes in temperature that are associated with night and day.

Which of the following behaviors represents a type of social phobia?

a) Melanie only leaves her house if one of her sisters is willing to go with her. b) Brad has been unable to graduate from college because he is terrified of taking a required speech class. c) Ellie faints whenever a doctor needs to give her an injection. d) Selma is so afraid of spiders that she refuses to go on picnics in the park.