Natural descent is basically another term for generations (as in a family-line). Legal descent is a term that deals with inheritance rules that were established to describe what happens if someone passes away and leaves no legal will.
a line of fit mean perfect line.
A line is made up of a large (infinite) number of points. When we say a point is on a line, we mean that it is one of the pints that form the line.
Ascent is an antonym of descent.
by zero line do you mean 0? or do you mean 0 with the slash in it like this /?
It means a line of hereditary descent along the male line, i.e., from father to son.
Matrilineality is the system (not a country or religion) which follows descent through the female line. In contrast, a system that follows a male's line, is a patrilineal descent.
Line of descent Paleo-Biology.
The line of descent of a purebred animal is called a pedigree. It shows the genetic history and lineage of the animal, detailing its ancestors and their traits.
A unilineal kinship system is based on only one line of descent, either through the father's line (patrilineal) or through the mother's line (matrilineal). In patrilineal societies, descent, inheritance, and roles are traced through the father's line, while in matrilineal societies, they are traced through the mother's line.
Speciation with branching of the evolutionary line of descent.
By line of descent.
matrilineal
line of descent
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