Your textbook suggests that there are over ______ different kinds of commercial memory aids available for purchase

Third-hand smoke exposure is about a person encountering smoke residue on surfaces rather than breathing in second-hand smoke exhaled by another person.

a. true b. false

What was Phineas Gage's personality like following his accident?

a. He had no change in his personality. b. He became undependable and obstinate. c. He became undependable but very accommodating. d. He became mild-mannered and friendly.