Ontogeny
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2008-06-30T16:43:47Z
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'''Ontogeny''' (also ontogenesis or [[morphogenesis]])('''''ontos''''' present participle of 'to be', '''''genesis''''' 'creation') describes the origin and the development of an [[organism]] from the [[fertilize|fertilized]] [[Ovum|egg]] to its [[mature]] form. Ontogeny is studied in [[developmental biology]], [[developmental psychology]], and [[developmental psychobiology]].
In more general terms, '''ontogeny''' is defined as the history of structural change in a unity, which can be a cell, an organism, or a society of organisms, without the loss of the organization that allows that unity to exist (Maturana and Varela, 1987, p. 74).
==See also==
{{Wiktionary}}
* [[Recapitulation theory]], the idea that ontogeny recapitulates [[phylogeny]]
* [[List_of_publications_in_biology#Ontogeny| Important publications in ontogeny]]
==References==
* Maturana, H. R., Varela F. J. (1987). ''The Tree of Knowledge: The Biological Roots of Human Understanding''. Boston: Shambhala Publications Inc.
== External links ==
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[[Category:Developmental biology]]
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