Final answer:
Differentiation is related to recognizing important differences in people's backgrounds. It involves a sense of order, hierarchy, and roles. Cultural systems play a significant role in differentiation.
Step-by-step explanation:
Differentiation, in the context of Bowen's notion, refers to the ability to recognize important differences in people's social, cultural, and economic backgrounds. It is related to a sense of order and organization, a sense of hierarchy and power differences, and roles for both individuals and groups. Differentiation is also influenced by differences in cultural systems, rather than biophysical factors.