What percentage of variation of intelligence is estimated to be the result of genetics?

According to the text, recent research indicates that ___________ may make a significant contribution to adolescents' emotionality

a. media consumption b. globalization c. brain development d. environmental toxins

Individuals who express an extremely high level of health anxiety are likely to receive a diagnosis of the

newly recognized disorder in DSM-5 called illness anxiety disorder. Indicate whether the statement is true or false