Nomogenesis: Or, Evolution Determined by LawM.I.T. Press, 1969 - Всего страниц: 477 |
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Стр. 81
... organs are likewise gathered together in a cone ) is a unisexual organ , the anthostrobile of the Bennettitales is a bisexual one . Similarly to what occurs in bisexual flowering plants , the female organs in the Bennettitales 66 1 See ...
... organs are likewise gathered together in a cone ) is a unisexual organ , the anthostrobile of the Bennettitales is a bisexual one . Similarly to what occurs in bisexual flowering plants , the female organs in the Bennettitales 66 1 See ...
Стр. 103
... organs possessing a relation to flight . As long ago as in 1881 Eisig described peculiar dilatations of the intestinal tract in certain annelid worms ( Hesione , Syllis ) , which he called organs " similar to the air bladder . " In ...
... organs possessing a relation to flight . As long ago as in 1881 Eisig described peculiar dilatations of the intestinal tract in certain annelid worms ( Hesione , Syllis ) , which he called organs " similar to the air bladder . " In ...
Стр. 158
... organs or parts as possess the same functions in different animals ( for instance , the wings of birds and the wings of insects ) , and homologous to identical organs in different animals , however diverse may be their shape and ...
... organs or parts as possess the same functions in different animals ( for instance , the wings of birds and the wings of insects ) , and homologous to identical organs in different animals , however diverse may be their shape and ...
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