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recapitulation |
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recapitulation, theory, stated as the biogenetic law by E. H. Haeckel Haeckel, Ernst Heinrich (ĕrnst hīn`rĭkh hĕ`kəl), 1834–1919, German biologist and philosopher. ..... Click the link for more information. , that the embryological development of the individual repeats the stages in the evolutionary development of the species. For example, the beginnings of gill clefts appear in both humans and fish, but while they are elaborated and eventually function in the fish, in humans, except for the modified gill cleft that becomes the Eustachian tube, they disappear as the embryo develops. Though drastically modified and qualified since its proposal, the historical significance of this theory—"ontogenesis recapitulates phylogenesis"—is that with its appearance it lent support to the theory of evolution evolution, concept that embodies the belief that existing animals and plants developed by a process of gradual, continuous change from previously existing forms. This theory, also known as descent with modification, constitutes organic evolution. ..... Click the link for more information. by seeming to corroborate it. recapitulation 1. Biology the apparent repetition in the embryonic development of an animal of the changes that occurred during its evolutionary history 2. Music the repeating of earlier themes, esp when forming the final section of a movement in sonata form How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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| But before we proceed to this business, a short recapitulation of some previous matters may be necessary. In the last chapter I shall give a brief recapitulation of the whole work, and a few concluding remarks. The first portion of her evidence was almost a recapitulation of the evidence given by the prisoner's mother--with this difference, that Mrs. |
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