This document discusses the concepts of race and ethnicity. It notes that race and ethnicity are often used imprecisely in everyday language. Biologically, race cannot be clearly defined due to the continuous nature of genetic traits and high intra-group variation. Ethnicity is defined by shared ancestry, language, history, religion, culture and sense of linked fate. The document also mentions stereotypes, prejudice, discrimination and racism in relation to race and ethnicity and presents the views of biological determinism and social constructivism.