A(n) is a subsection of a population with a set of shared social, cultural, and historical experiences; with relatively distinctive beliefs, values, and behaviors; and with some sense of identity of belonging to the subgroup.

Ethnic group

Explanation: an ethnicity are usually refered to as people of common known and shared heritage, language, dressing and others while ethnic group are a subset of population with a known and shared language, culture, behavior, social, heritage and also beliefs.Members of an ethnic group has a common characteristics that can be used to identify them. They behave mostly alike, can be recognized mostly by their face structure, have a common history and historical experience and also a common language and Culture.

answer; goals and feedback are present;

answer; observation and imitation;