WORLD HISTORY

Detailed explanation-1: -Traditional societies are often organized into descent groups called “lineages, ‘’ “clans, ‘’ and “tribes.” Each of these descent groups claims to have a common ancestor, and this ancestry distinguishes the group’s members from the rest of the population.

Detailed explanation-2: -There are two main forms of clans: a patriclan, in which lineage is traced through the men, and a matriclan, in which lineage is traced through women. Helping to bring unity to their group, a clan often will adopt a totem, an animal or a part of nature used as a means of group identification.

Detailed explanation-3: -genealogy, the study of family origins and history. Genealogists compile lists of ancestors, which they arrange in pedigree charts or other written forms.

Detailed explanation-4: -Common ancestor: When two organisms came from the differentiation of the same ancestor, this ancestor is referred to as a common ancestor between the species. Common descent: A characteristic in multiple species that was first exhibited by another ancestor of a different species.