Nomogenesis: Or, Evolution Determined by LawM.I.T. Press, 1969 - Всего страниц: 477 |
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Стр. 27
... recent fauna and flora . But nothing of the kind has happened . Throughout , the history of the earth presents to us beings as well adapted to the circumstances of their time , as recent ones are to theirs . However far back we may ...
... recent fauna and flora . But nothing of the kind has happened . Throughout , the history of the earth presents to us beings as well adapted to the circumstances of their time , as recent ones are to theirs . However far back we may ...
Стр. 120
... recently - discovered Rhynia and Hornea , of the Lower and Middle Devonian , are the most primitive Pteridophyta ... recent forms , the primitive Ophioglos- saceae and Marattiaceae are referred ) as the ancestral forms of gymnosperms ...
... recently - discovered Rhynia and Hornea , of the Lower and Middle Devonian , are the most primitive Pteridophyta ... recent forms , the primitive Ophioglos- saceae and Marattiaceae are referred ) as the ancestral forms of gymnosperms ...
Стр. 191
... recent reptiles the optic lobes are closely approximated , but in the Jurassic pterosaur Scaphognathus they are separated , owing to the cerebellum meeting the fore- brain , as in birds . Moreover , the cerebellum is supplied with ...
... recent reptiles the optic lobes are closely approximated , but in the Jurassic pterosaur Scaphognathus they are separated , owing to the cerebellum meeting the fore- brain , as in birds . Moreover , the cerebellum is supplied 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