Q 1.Ethnicity is based on __________ characteristics and race is based on ¬¬_________ characteristics. 2.Apartheid is a form of __________. 3.Contact theory suggests that __________. 4.Psychologist Eugene Hartley (1946) made up the names of three ethnic groups—Wallonians, Pireneans, and Danireans—and found that people who were prejudiced against Jews and Blacks 5.African Americans get poorer medical treatment __________.