Which concept is best defined as a principle by which people are defined, differentiated, and organized around a shared awareness of their common ancestry as expressed in culture, physical attributes, language, historical experiences, and birthright?

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Ethnicity is a concept that refers to a shared awareness of common ancestry as expressed in various ways such as culture, physical attributes, language, historical experiences, and birthright. Race refers to a group of people who share physical traits such as skin color, while social class is defined by economic and social status. Caste is a system of social stratification based on inherited status, and phenotypic variation refers to the variation in physical traits that occur within and between populations.

Which Concept Is Best Defined as a Principle by Which