Answer:
The traditional definitions of race and ethnicity are linked to biological and sociological factors, respectively. Race refers to physical characteristics, such as bone structure or the color of eyes and hair. Ethnicity, however, refers to cultural factors such as nationality and language.
Some examples of race are, for example, the black and Caucasian race. On the other hand, some examples of ethnicity are the ethnic Germans or the Han of China. It can be said that race is determined by the physicality of people. Ethnic origin, on the other hand, is determined by the social and cultural groups to which one belongs. One may have more than one ethnic origin, but only one race, even if it is mixed.