Nomogenesis: Or, Evolution Determined by LawM.I.T. Press, 1969 - Всего страниц: 477 |
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Стр. 247
... genera , in each of which the development of characters follows parallel lines ( Martynov , 1913 , p . 78 ; 1915 , p . 434 ) . Two genera of caddis - flies , Apatania and Apatelia , contain such similar species , that an authority on ...
... genera , in each of which the development of characters follows parallel lines ( Martynov , 1913 , p . 78 ; 1915 , p . 434 ) . Two genera of caddis - flies , Apatania and Apatelia , contain such similar species , that an authority on ...
Стр. 345
... genera are the very ones that have to be subdivided . ) But this means no more than that in the given case the differences between the smaller genera is a primary phenomenon , whereas similarities , which on the whole predominate in the ...
... genera are the very ones that have to be subdivided . ) But this means no more than that in the given case the differences between the smaller genera is a primary phenomenon , whereas similarities , which on the whole predominate in the ...
Стр. 346
... genera must have been produced were rails of a type which can be imagined to have consisted of the combined characters of the recent genera Porphyrio + Tribonyx + Ocydromus . Our genera have probably descended from such a rail of the ...
... genera must have been produced were rails of a type which can be imagined to have consisted of the combined characters of the recent genera Porphyrio + Tribonyx + Ocydromus . Our genera have probably descended from such a rail of the ...
Содержание
THE STRUGGLE FOR EXISTENCE AND NATURAL | 1 |
Various types of the struggle for existence | 45 |
Is survival a privilege of the bearers of useful | 62 |
Авторские права | |
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Abel accidental according adapted adult allied America ammonites amphibians ancestors angiosperms Animals and Plants appear belonging Bennettitales birds bones butterflies Carinatae chance chap characters colour common complex Craniata Cretaceous Crossopterygii Darwin definite direction derived determined direction dicotyledons dinosaurs Dipnoi dorsal due to convergence embryo evolution exhibit external extinct female fins fishes formation forms Fürbringer genera genus groups gymnosperms hind-limbs independently insects instance Kuznetzov lamarckiana latter living Lotsy lower male mammals manifested means mimicry Monochlamydeae monocotyledons mutations natural selection number of individuals observed occur ontogeny opinion organisation Origin of Species Ornithischia orthogenesis Osborn parallel pectoral peculiar phenomena phylogeny Piperales placenta Placentalia Polycarpicae polyphyletic polyphyletic origin possess primitive produced Pseudosuchia pterosaurs Ratitae referred regarded remarkable reptiles resemblance Russian Saurischia says seeds shell similar skull structure struggle for existence sub-species teeth Teleostomi tendency tetrapods theory tion transformation varieties Vavilov vertebrates Vries wings