The document discusses race, ethnicity, and prejudice. It defines race as referring to perceived biological characteristics, while ethnicity emphasizes cultural traits and identity. While race was historically thought to be biological, it is now widely recognized as a social construct. Ethnic groups share cultural heritage and identity. Prejudice involves biased beliefs about groups and can take the form of racism, stereotypes, and discrimination. Theories of prejudice include scapegoating frustrated groups, authoritarian personalities seeking inferior targets, culturally embedded prejudice, and the powerful using prejudice to divide and oppress others.