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Bilateral descent is a system of family lineage in which the relatives on the mother's side and father's side are equally important for emotional ties or for transfer of property or wealth. It is a family arrangement where descent and inheritance are passed equally through both parents. [ 1 ]
Bilateria (/ ˌ b aɪ l ə ˈ t ɪər i ə / BY-lə-TEER-ee-ə) [5] is a large clade or infrakingdom of animals called bilaterians (/ ˌ b aɪ l ə ˈ t ɪər i ə n / BY-lə-TEER-ee-ən), [6] characterized by bilateral symmetry (i.e. having a left and a right side that are mirror images of each other) during embryonic development.
A clade is by definition monophyletic, meaning that it contains one ancestor which can be an organism, a population, or a species and all its descendants. [ note 1 ] [ 10 ] [ 11 ] The ancestor can be known or unknown; any and all members of a clade can be extant or extinct.
Bilateral descent is a form of kinship system in which an individual's family membership derives from and is traced through both the paternal and maternal sides. The ...
A horizontal cladogram, with the root to the left Two vertical cladograms, the root at the bottom. A cladogram (from Greek clados "branch" and gramma "character") is a diagram used in cladistics to show relations among organisms.
A family may be divided into subfamilies, which are intermediate ranks between the ranks of family and genus. The official family names are Latin in origin; however, popular names are often used: for example, walnut trees and hickory trees belong to the family Juglandaceae , but that family is commonly referred to as the "walnut family".
In the matrilineal system, the family lived together in a tharavadu which was composed of a mother, her brothers and younger sisters, and her children. The oldest male member was known as the karanavar and was the head of the household, managing the family estate. Lineage was traced through the mother, and the children belonged to the mother's ...
Holland thus argues that both the biological theory and the biological evidence is nondeterministic and nonreductive, and that biology as a theoretical and empirical endeavor (as opposed to 'biology' as a cultural-symbolic nexus as outlined in Schneider's 1968 book) actually supports the nurture kinship perspective of cultural anthropologists ...