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This definition assigns species on the basis of amount of divergence associated with reproductive incompatibility, which is measured essentially by number of autapomorphies. [6] This grouping method is often referred to as the " monophyletic species concept" or the "phylospecies" concept and was popularized by D.E. Rosen in 1979.
Neurophenomenology refers to a scientific research program aimed to address the hard problem of consciousness in a pragmatic way. [1] It combines neuroscience with phenomenology in order to study experience, mind, and consciousness with an emphasis on the embodied condition of the human mind. [2]
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.
The term paraphyly, or paraphyletic, derives from the two Ancient Greek words παρά (pará), meaning "beside, near", and φῦλον (phûlon), meaning "genus, species", [2] [3] and refers to the situation in which one or several monophyletic subgroups of organisms (e.g., genera, species) are left apart from all other descendants of a unique common ancestor.
The term monophyly, or monophyletic, derives from the two Ancient Greek words μόνος (mónos), meaning "alone, only, unique", and φῦλον (phûlon), meaning "genus, species", [4] [5] and refers to the fact that a monophyletic group includes organisms (e.g., genera, species) consisting of all the descendants of a unique common ancestor.
Just as the authors of the Wiki-article. The taxa do not include ancestors. Even the monophyletic ones. They include all (in case they are monophyletic) or some (in case they are non-monophyletic, i.e. para- and polyphyletic) terminal taxa (indivisible units of the analysis) believed to be descendants of the hypothetical most recent common ...
Definition of an evolutionary grade [ edit ] An evolutionary grade is a group of species united by morphological or physiological traits, that has given rise to another group that has major differences from the ancestral group's condition, and is thus not considered part of the ancestral group, while still having enough similarities that we can ...
Neutral monism argues that the mind and body are two aspects of the same underlying, neutral substance. In this framework, micro-entities possess basic conscious experiences, leading to questions about how these experiences amalgamate to form complex human consciousness. A major point of contention is the mechanics of combination.