Nomogenesis: Or, Evolution Determined by LawM.I.T. Press, 1969 - Всего страниц: 477 |
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Стр. 167
... VERTEBRATES Among invertebrates several groups may be named which exhibit a certain resemblance with vertebrates , some- times in the most fundamental characters . To such groups may be referred ( 1 ) the Tunicata , ( 2 ) Enteropneusta ...
... VERTEBRATES Among invertebrates several groups may be named which exhibit a certain resemblance with vertebrates , some- times in the most fundamental characters . To such groups may be referred ( 1 ) the Tunicata , ( 2 ) Enteropneusta ...
Стр. 168
... vertebrates close to one another . If , finally , it be admitted that vertebrates had a polyphyletic origin , i.e. that they have been derived from different groups ( the most probable assumption ) , in that case also a series of ...
... vertebrates close to one another . If , finally , it be admitted that vertebrates had a polyphyletic origin , i.e. that they have been derived from different groups ( the most probable assumption ) , in that case also a series of ...
Стр. 221
... vertebrates , etc. The complex eyes of the Cephalopoda , much re- sembling those of vertebrates , are very remarkable in both cases , besides the lens , we meet with a retina , cornea , iris , supplied with muscles , ciliary process ...
... vertebrates , etc. The complex eyes of the Cephalopoda , much re- sembling those of vertebrates , are very remarkable in both cases , besides the lens , we meet with a retina , cornea , iris , supplied with muscles , ciliary process ...
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