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In phylogenetics, a plesiomorphy ("near form") and symplesiomorphy are synonyms for an ancestral character shared by all members of a clade, which does not distinguish the clade from other clades. Plesiomorphy, symplesiomorphy, apomorphy, and synapomorphy all mean a trait shared between species because they share an ancestral species. [a]
Pseudoplesiomorphy – a trait that cannot be identified as either a plesiomorphy or an apomorphy that is a reversal. [15] Reversal – a loss of derived trait present in ancestor and the reestablishment of a plesiomorphic trait. Convergence – independent evolution of a similar trait in two or more taxa. Apomorphy – a derived trait.
Whereas, a primitive character is one that is originally present in the ancestral population. [5] Primitive characters are avoided as they depict the ancestral character state. Conversely, derived characters depict the alteration of characters from the ancestral state because selection favored organisms with that derived trait. [6]
Eye color is an example of a (physical) phenotypic trait. A phenotypic trait, [1] [2] simply trait, or character state [3] [4] is a distinct variant of a phenotypic characteristic of an organism; it may be either inherited or determined environmentally, but typically occurs as a combination of the two. [5]
While a character rarely rolls a check using just an ability score, these scores, and the modifiers they create, affect nearly every aspect of a character's skills and abilities." [2] In some games, such as older versions of Dungeons & Dragons the attribute is used on its own to determine outcomes, whereas in many games, beginning with Bunnies ...
Secondary homology is implied by parsimony analysis, where a character state that arises only once on a tree is taken to be homologous. [20] [21] As implied in this definition, many cladists consider secondary homology to be synonymous with synapomorphy, a shared derived character or trait state that distinguishes a clade from other organisms.
William McDougall, writing in 1932, put forward a conjecture observing that "five distinguishable but separable factors" could be identified when looking at personality. His suggestions, "intellect, character, temperament, disposition and temper", have been seen as "anticipating" the adoption of the Big Five model in subsequent years. [8]
The Temperament and Character Inventory (TCI) is an inventory for personality traits devised by Cloninger et al. [1] It is closely related to and an outgrowth of the Tridimensional Personality Questionnaire (TPQ), and it has also been related to the dimensions of personality in Zuckerman's alternative five and Eysenck's models [2] and those of the five factor model.