| 单词 | homological |
| 例句 | Maxim Konstevich — For numerous contributions which have taken the fruitful interaction between modern theoretical physics and mathematics to new heights, including the development of homological mirror symmetry, and the study of wall-crossing phenomena. 9 Theoretical Physicists Win Massive New Cash Award 2012-07-31T19:45:00.287Z Such triangles are said to be homological, or in perspective. Encyclopaedia Britannica, 11th Edition, Volume 11, Slice 6 "Geodesy" to "Geometry" 2011-09-19T02:00:10.473Z His body is constructed on the same homological plan as that of other mammals, independently of the uses to which the several parts may be put. The Descent of Man and Selection in Relation to Sex, Vol. I 2011-01-17T03:00:49.523Z Seedless Fruit.—Many of our most valuable fruits, although consisting in a homological sense of widely different organs, are either quite sterile, or produce extremely few seeds. The Variation of Animals and Plants Under Domestication, Volume II (of 2) And this difficulty would, indeed, be a formidable one to the theory of evolution, if the similarity were not only analogical but homological. Darwin, and After Darwin (Vol. 1 and 3, of 3) An Exposition of the Darwinian Theory and a Discussion of Post-Darwinian Questions It remains now to consider what are the evidences in support of the existence of an internal power, by the action of which these homological manifestations are evolved. On the Genesis of Species Its ossification from a separate 111centre in mammals has therefore a homological significance. Form and Function A Contribution to the History of Animal Morphology Roridula, perhaps, shows us how we may reconcile these difficulties with respect to the homological nature of the tentacles. Insectivorous Plants They are therefore of the same homological nature as stems; and the three following cases may be added to the twenty previously given cases. The Power of Movement in Plants Many of our most valuable fruits, although consisting in a homological sense of widely different organs, are either quite sterile, or produce extremely few seeds. The Variation of Animals and Plants under Domestication — Volume 2 Irregularities in the circulating system are far from uncommon, and sometimes illustrate this homological tendency. On the Genesis of Species Owen pointed out that it was necessary to distinguish between centres of ossification which were teleological in import and such as were purely indicative of homological relationships. Form and Function A Contribution to the History of Animal Morphology The homological nature, however, of a tendril seems to make no difference in its action. The Movements and Habits of Climbing Plants His body is constructed on the same homological plan as that of other mammals. The Descent of Man But in most of such cases of these apparently so closely similar organs, some important homological difference may be detected. Life and Letters of Charles Darwin — Volume 2 The natural system of classification is based upon a proper appreciation of the distinction between homological and analogical characters. Form and Function A Contribution to the History of Animal Morphology In general, then, homological characters are more valuable for classificatory purposes because they have a longer pedigree than analogical characters, which represent recent acquirements of the race. Form and Function A Contribution to the History of Animal Morphology And it is young petioles and tendrils, whatever their homological nature may be, which move on being touched. The Movements and Habits of Climbing Plants They laid great store by homological resemblances, and dismissed analogies of structure as of little interest. Form and Function A Contribution to the History of Animal Morphology De Candolle believes that the tendrils differ in their homological nature in two of the tribes. The Movements and Habits of Climbing Plants This would be an excellent scheme; but I observe that botanists are by no means unanimous on the homological nature of certain tendrils. The Movements and Habits of Climbing Plants In paragraph 7, on affinities and classification, Darwin points out that on the theory of evolution homological relationship would be real relationship, and the natural system would really be genealogical. Form and Function A Contribution to the History of Animal Morphology The position of the tendrils alone suffices to show their homological nature. The Movements and Habits of Climbing Plants Mohl, who includes under the name of tendrils various organs having a similar external appearance, classes them according to their homological nature, as being modified leaves, flower-peduncles, &c. The Movements and Habits of Climbing Plants In the specimens examined by me all the tendrils were certainly foliar, and it is hardly credible that the same plant should produce tendrils of a widely different homological nature. The Movements and Habits of Climbing Plants |
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