Noun:

गर्भ-विकास शास्त्र, भ्रूण-विज्ञान, व्यक्तिवृत्त,

ontogeny शब्द के हिंदी अर्थ का उदाहरण:

জজজमछली: (1963) चीन में, भ्रूण-विज्ञानी तौंग दिज़ू (Tong Dizhou) ने एक नर मछली की कोशिका को एक मादा मछली के अण्डे में प्रविष्ट करके विश्व की पहली प्रतिरूपित मछली का उत्पादन किया।

ontogeny's Usage Examples:

The first hypothesis is not negatived by direct evidence, for we do not actually know the ontogeny of any of the Palaeozoic insects; it is, however, rendered highly improbable by the modern views as to the nature and origin of wings in insects, and by the fact that the Endopterygota include none of the lower existing forms of insects.

If we admit that the larva has, in the phylogeny of insects, gradually diverged from the imago, and if we recollect that in the ontogeny the larva has always to become the imago (and of course still does so) notwithstanding the increased difficulty of the transformation, we cannot but recognize that a period of helplessness in which the transformation may take place is to be expected.

The word metamorphosis cannot, in fact, be used any longer in its original sense, for the change which it implied does not normally occur in ontogeny, and in phylogeny the idea is more accurately expressed by the term differentiation.

for regarding the monstrous form as necessarily primitive or ancestral, nor even as a stage in the ontogeny of the organ.

It was formerly assumed, and the view is still held, that the foliage-leaf was the primitive form from which all others were derived, mainly on the ground that, in ontogeny, the foliage-leaf generally precedes the sporophyll.

The leaves of the true mosses and those of the club-mosses (Lycopodium, Selaginella) being somewhat alike in general appearance and in ontogeny, might be, and indeed have been, regarded as homologous on that ground.

The homology of members was based, in the first instance, upon similarity of development and upon similar relations to the other parts of the body, that is, upon ontogeny.

The term morphology, which was introduced into science by Goethe (1817), designates, in the first place, the study of the form and composition of the body and of the parts of which the body may consist; secondly, the relations of the parts of the same body; thirdly, the comparison of the bodies or parts of the bodies of plants of different kinds; fourthly, the study of the development of the body and of its parts (ontogeny); fifthly, the investigation of the historical origin and descent of the body and its parts (phylogeny); and, lastly, the consideration of the relation of the parts of the body to their various functions, a study that is known as organography.

It is found in most of P all I of those Pteridophytes which we have other reasons for e considering as primitive types, and essentially the same Ontogeny type is found, as we have seen, in the independently with developed primitive conducting system of the mossPh.~logeny.

The most striking general change has been against seeing in the facts of ontogeny any direct evidence as to phylogeny.

Synonyms:

auxesis, virilisation, growing, growth, dentition, rooting, psychogenesis, recapitulation, cultivation, suppression, life cycle, cohesion, kainogenesis, inflorescence, culture, caenogenesis, kenogenesis, virilization, germination, masculinisation, infructescence, organic process, vegetation, psychosexual development, odontiasis, palingenesis, gametogenesis, maturation, cytogeny, habit, fructification, psychomotor development, cainogenesis, anthesis, juvenescence, ontogenesis, masculinization, efflorescence, biological process, foliation, myelinization, sprouting, teething, amelogenesis, proliferation, morphogenesis, development, gastrulation, cytogenesis, apposition, flowering, teratogenesis, cenogenesis, angiogenesis, blossoming, leafing, florescence, neurogenesis, myelinisation, intussusception,

Antonyms:

decline, devolution, cenogenesis, palingenesis, nondevelopment,