PART II
Descent group is a permanent social unit whose members say they have ancestors in common. Descent group membership is determined at birth and is lifelong, so it is an ascribed status. Descent is determined through either the mothers line or fathers line of descent but not both of them. Most societies will follow the line of the mother.
There is one person that stands at the top of the common genealogy. Adam and Eve example Abraham Example All of the above are examples of demonstrated descent
Clans work differently than Clans do not necessarily show a line to the Apical Ancestor Clans just make a claim to that ancestry
Clans unlike nuclear families are permanent, enduring units Clans will then have rules as to where to reside and who lives on the estate Patrilocality vs matrilocality Ambilineal descent