Cross-cultural patterns and a description of foraging societies. Nuclear family 2 adults and children composition of the unit that tries to address people"s needs. Anything beyond that is something else, a different kind of family. Definition that focuses on relationships that focuses on carrying for people, dependents, and relationships more than that trying to address needs of adults. This differs from legal and census definitions but we need a different definition for our class daily is not important it just conveys regularity and on-going. The definition does not specify particular relationships it could be a friend. It also does not introduce issue of emotions and feelings due to the need to apply to various cultures notice definition as we go along. Nuclear is a particular composition 2 adults and children no indication of organization or relations. It is a technical term specifying a form of family. Historical materialism or simply materialism today fox will illustrate this approach.