Search results
Results from the WOW.Com Content Network
A lineal or direct descendant, in legal usage, is a blood relative in the direct line of descent – the children, grandchildren, great-grandchildren, etc. of a person.In a legal procedure sense, lineal descent refers to the acquisition of estate by inheritance by parent from grandparent and by child from parent, whereas collateral descent refers to the acquisition of estate or real property ...
Apical ancestor, refers to the last common ancestor of an entire group, such as a species (biology) or a clan (anthropology) Apical (anatomy), an anatomical term of location for features located opposite the base of an organism or structure; Apical (chemistry), a position in certain molecular geometries in chemistry
An evolutionary tree (of Amniota, for example, the last common ancestor of mammals and reptiles, and all its descendants) illustrates the initial conditions causing evolutionary patterns of similarity (e.g., all Amniotes produce an egg that possesses the amnios) and the patterns of divergence amongst lineages (e.g., mammals and reptiles ...
In genealogy, the progenitor (rarer: primogenitor; German: Stammvater or Ahnherr) is the – sometimes legendary – founder of a family, line of descent, clan or tribe, noble house, or ethnic group. [1] Genealogy (commonly known as family history) understands a progenitor to be the earliest recorded ancestor of a consanguineous family group of ...
The degree is the number of generations subsequent to the common ancestor before a parent of one of the cousins is found, while the removal is the difference between the number of generations from each cousin to the common ancestor (the difference between the generations the cousins are from). [67] [68]
Objections to evolution have been raised since evolutionary ideas came to prominence in the 19th century. When Charles Darwin published his 1859 book On the Origin of Species, his theory of evolution (the idea that species arose through descent with modification from a single common ancestor in a process driven by natural selection) initially met opposition from scientists with different ...
An adoption detective is any licensed or unlicensed person who looks into historic records to locate persons of interest. Clients are children suffering from genealogical bewilderment with a desire to learn something about their genetic antecedents by tracing family lineages to become enlightened about their ancestral social and cultural heritage; discover the geographical niche from which ...
Alternatively, this ancestor may have possessed only a diffuse nerve net or several bundles of nervous tissue with no distinct dorsoventral localization. [ 1 ] [ 12 ] This would mean that the apparent inversion was simply a result of concentration of the central nervous system at opposite poles independently in the lineages leading to ...