Nomogenesis: Or, Evolution Determined by LawM.I.T. Press, 1969 - Всего страниц: 477 |
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Стр. 8
... chap . vi to the edition of 1898 . 2 I have now learnt that the same opinion was reached before me by R. E. Lloyd ... chap . xv of the same work ( p . 421 , 1872 ) , Darwin calls the use and disuse of organs important agencies in ...
... chap . vi to the edition of 1898 . 2 I have now learnt that the same opinion was reached before me by R. E. Lloyd ... chap . xv of the same work ( p . 421 , 1872 ) , Darwin calls the use and disuse of organs important agencies in ...
Стр. 117
... chap . xxiii ) : under the same external con- ditions diverse variations have often been produced , while , on the other hand , the organism quite often persist- ently preserves its characters under the most diversified conditions.1 ...
... chap . xxiii ) : under the same external con- ditions diverse variations have often been produced , while , on the other hand , the organism quite often persist- ently preserves its characters under the most diversified conditions.1 ...
Стр. 369
... ( chap . xx , p . 192 ) , he says , " In separated districts , long - continued exposure to different conditions of life may perhaps produce new races without the aid of selection . " ( Compare also chap . xxiii , p . 271. ) By the time ...
... ( chap . xx , p . 192 ) , he says , " In separated districts , long - continued exposure to different conditions of life may perhaps produce new races without the aid of selection . " ( Compare also chap . xxiii , p . 271. ) By the time ...
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