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A physiological race is not to be confused with a physiologic race, an obsolete term for cryptic species. [16] Neither biological form nor forma specialis should be confused with the formal botanical taxonomic rank of forma or form, or with the zoological term form, an informal description (often seasonal) which is not taxonomic.
tinman, or tin is an Nk2-homeobox containing transcription factor first isolated in Drosophila flies. The human homolog is the Nkx2-5 gene. tinman is expressed in the precardiac mesoderm and is responsible for the differentiation, proliferation, and specification of cardiac progenitor cells.
The extended wording on the title page, which adds by Means of Natural Selection, or the Preservation of Favoured Races in the Struggle for Life, uses the general terminology of biological races as an alternative for "varieties" such as "the several races, for instance, of the cabbage", and does not carry the modern connotation of human races ...
Researchers have investigated the relationship between race and genetics as part of efforts to understand how biology may or may not contribute to human racial categorization. Today, the consensus among scientists is that race is a social construct , and that using it as a proxy for genetic differences among populations is misleading.
Race is a categorization of humans based on shared physical or social qualities into groups generally viewed as distinct within a given society. [1] The term came into common usage during the 16th century, when it was used to refer to groups of various kinds, including those characterized by close kinship relations. [2]
Human taxonomy is the classification of the human species within zoological taxonomy. The systematic genus, Homo, is designed to include both anatomically modern humans and extinct varieties of archaic humans.
Human is a loanword of Middle English from Old French humain, ultimately from Latin hūmānus, the adjectival form of homō ('man' – in the sense of humanity). [9] The native English term man can refer to the species generally (a synonym for humanity) as well as to human males. It may also refer to individuals of either sex.
Race: The Power of an Illusion is a three-part documentary series produced by California Newsreel that investigates the idea of race in society, science and history. The educational documentary originally screened on American public television and was primarily funded by the Corporation for Public Broadcasting , the Ford Foundation and PBS .