<P> Race and other large - scale groupings can also influence class standing . The association of particular ethnic groups with class statuses is common in many societies . As a result of conquest or internal ethnic differentiation, a ruling class is often ethnically homogenous and particular races or ethnic groups in some societies are legally or customarily restricted to occupying particular class positions . Which ethnicities are considered as belonging to high or low classes varies from society to society . </P> <P> In modern societies, strict legal links between ethnicity and class have been drawn, such as in apartheid, the caste system in Africa, the position of the Burakumin in Japanese society and the casta system in Latin America . </P>

Who considered that social structure is made up through the internal structure of roles