Material Culture is often used as a means by which one conveys identification with one or another competing ethnicity. Note the examples given below from relatively contemporary societies. Various anthropologists have suggested these symbols are not simply one dimensional. They are seen as negotiable. Gender Identities Gender is not another term for biological differences for male and female.
Gender roles refer to what behaviors are assigned to various groups within a society.
While a society may use male or female biological traits to divide those tasks. People in a society have to be taught their roles. Material Culture plays a big role in that education. Go to the Gender identity page and answer the questions found there.