Nomogenesis: Or, Evolution Determined by LawM.I.T. Press, 1969 - Всего страниц: 477 |
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Стр. 121
... various genetic branches , thereby adding weight to the importance of the orthogenetic process . 2. The comparative anatomy of animals supplies a number of striking examples of a definite direction in evolution . Among vertebrates we ...
... various genetic branches , thereby adding weight to the importance of the orthogenetic process . 2. The comparative anatomy of animals supplies a number of striking examples of a definite direction in evolution . Among vertebrates we ...
Стр. 258
... various species of the genera Camelina , Veronica , Lactuca , Jurinea , Serratula , and in other plants of our flora , forms with entire and lobate or divided leaves are met with . Zinger ( 1909 , p . 70 ) draws attention to the fact ...
... various species of the genera Camelina , Veronica , Lactuca , Jurinea , Serratula , and in other plants of our flora , forms with entire and lobate or divided leaves are met with . Zinger ( 1909 , p . 70 ) draws attention to the fact ...
Стр. 328
Or, Evolution Determined by Law Lev Semenovich Berg. exhibited by representatives of various orders . " 1 Similarly a tendency towards a bumble - bee - like pubescence and colora- tion occurs in various groups of insects ( Handlirsch ...
Or, Evolution Determined by Law Lev Semenovich Berg. exhibited by representatives of various orders . " 1 Similarly a tendency towards a bumble - bee - like pubescence and colora- tion occurs in various groups of insects ( Handlirsch ...
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 |
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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