Nomogenesis: Or, Evolution Determined by LawM.I.T. Press, 1969 - Всего страниц: 477 |
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Стр. 140
... genus Hyphessobrycon ( of the Tetragonopterus group ) have been described . One of the Guiana species of that genus possessing the anomaly in question has even been described as a separate genus , Dermatocheir ( l.c. p . 343 ) . The ...
... genus Hyphessobrycon ( of the Tetragonopterus group ) have been described . One of the Guiana species of that genus possessing the anomaly in question has even been described as a separate genus , Dermatocheir ( l.c. p . 343 ) . The ...
Стр. 247
... genus Dinarthrum fall into four sub - genera , in each of which the development of characters follows parallel lines ... genus Apatidea . And yet , according to the researches of Martynov ( 1918 , p . 57 ) , the Turkestan Apatidea ...
... genus Dinarthrum fall into four sub - genera , in each of which the development of characters follows parallel lines ... genus Apatidea . And yet , according to the researches of Martynov ( 1918 , p . 57 ) , the Turkestan Apatidea ...
Стр. 355
... genus " Microscolex " at different times and in different localities have diverged from various species of the genus Notiodrilus . In one of the islands of the Crozet group Michaelsen dis- covered two species of related worms , one with ...
... genus " Microscolex " at different times and in different localities have diverged from various species of the genus Notiodrilus . In one of the islands of the Crozet group Michaelsen dis- covered two species of related worms , one with ...
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