Evolution by Atrophy in Biology and SociologyD. Appleton, 1899 - 316 pagini |
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Pagina 2
... SPECIES . By Professor A. DE QUATREFAGES , Museum of Natural History , Paris . $ 2.00 . 28. THE CRAYFISH : An Introduction to the Study of Zoology . By T. H. HUXLEY , F. R. S. With 82 Illustrations . $ 1.75 . 29. THE ATOMIC THEORY . By ...
... SPECIES . By Professor A. DE QUATREFAGES , Museum of Natural History , Paris . $ 2.00 . 28. THE CRAYFISH : An Introduction to the Study of Zoology . By T. H. HUXLEY , F. R. S. With 82 Illustrations . $ 1.75 . 29. THE ATOMIC THEORY . By ...
Pagina vii
... species ( limbs ) . 41 Limbs adapted to an aquatic life ( Ceratodus , Ortha- canthus , Protopterus amphibius , Protopterus annec- tens , Lepidosiren 43 Limbs adapted to a terrestrial life 43 § 2. Transformation of homodynamic organs in ...
... species ( limbs ) . 41 Limbs adapted to an aquatic life ( Ceratodus , Ortha- canthus , Protopterus amphibius , Protopterus annec- tens , Lepidosiren 43 Limbs adapted to a terrestrial life 43 § 2. Transformation of homodynamic organs in ...
Pagina viii
... species ( foliage leaves ) 1. Adaptation to climbing ( Cobaeca scandens , Vicia pyrenaica , Cucumis sativus ) . 2. Adaptation to carnivorous nutrition ( Utricularia , Nepenthes , Drosera ) . 3. Adaptation to an aquatic life ( Sagit ...
... species ( foliage leaves ) 1. Adaptation to climbing ( Cobaeca scandens , Vicia pyrenaica , Cucumis sativus ) . 2. Adaptation to carnivorous nutrition ( Utricularia , Nepenthes , Drosera ) . 3. Adaptation to an aquatic life ( Sagit ...
Pagina 11
... species of Echinoderms . The egg is a typical cell , an organism , an individual . All its parts are essential to it , and are incapable of separate existence , at any rate for any length of time ; close physiological bonds unite the ...
... species of Echinoderms . The egg is a typical cell , an organism , an individual . All its parts are essential to it , and are incapable of separate existence , at any rate for any length of time ; close physiological bonds unite the ...
Pagina 13
... species - some kind of worm . At first sight , then , the hectocotyle seems to be an individual . This , however , is not the case , as it reproduces , not a hectocotyle but a cephalopod . Many Echinoderms , by a spontaneous act of ...
... species - some kind of worm . At first sight , then , the hectocotyle seems to be an individual . This , however , is not the case , as it reproduces , not a hectocotyle but a cephalopod . Many Echinoderms , by a spontaneous act of ...
Alte ediții - Afișează-le pe toate
Evolution by Atrophy in Biology and Sociology Jean Demoor,Jean Massart,Emile Vandervelde Vizualizare completă - 1899 |
Evolution by Atrophy in Biology and Sociology Jean Demoor,Jean Massart,Emile Vandervelde Vizualizare completă - 1899 |
Evolution by Atrophy in Biology and Sociology Jean Demoor,Jean Massart,Emile Vandervelde Vizualizare completă - 1899 |
Termeni și expresii frecvente
adult ancestral stages animals antheridia apical leaves appear appendages aquatic Archaeopteryx assimilative atrophy basilar leaves became become belonging bipinnated blade branches calcaneum canal cells characters chlorophyll collective property colony complete condition consists corporations Crustacea custom degeneration degenerative evolution digits disappeared embryo endopodite epipod exhibited existence exopodite female feudal floating leaves flowers foliage leaves formation formed function gland Huxley hypopod Illustrations individual instance institutions intercentrum land larval Lathyrus Aphaca leaf leaflets limbs male mammals marriage masuirs maxillipede mesonephros metatarsals modern modification muscles normal original pairs petiole phalanges pineal eye plants podite primitive Professor progressive evolution pronephros prothallus protopodite pr reduced regarded remain represent retracing Rosa rugosa rudimentary organs segment sepal slow-worm social societies sociology species stamens stem stipules stomata structure survival tarsius tendrils terminal thalamencephalon third tion traces transformation undergone useless vertebral column vertebrates vestiges wings
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