Evolution by Atrophy in Biology and SociologyD. Appleton, 1899 - 316 pagini |
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Pagina ix
... exhibit rudimentary organs Section I. Rudimentary organs of animals § 1. Rudimentary organs in man · · 1. Integumentary system . 2. Skeleton . 3. Mus- cular system . 4. Nervous system . 5. Digestive system . 6. Vascular system . 7 ...
... exhibit rudimentary organs Section I. Rudimentary organs of animals § 1. Rudimentary organs in man · · 1. Integumentary system . 2. Skeleton . 3. Mus- cular system . 4. Nervous system . 5. Digestive system . 6. Vascular system . 7 ...
Pagina 9
... exhibit some characters in common , and some distinctive characters . The common characters may be accounted for by the co - operation which exists in both cases between the units of which they are composed ( individuals , or cells ) ...
... exhibit some characters in common , and some distinctive characters . The common characters may be accounted for by the co - operation which exists in both cases between the units of which they are composed ( individuals , or cells ) ...
Pagina 20
... exhibit considerable differences as well as analogies , a necessary result of their different natures . These few remarks must suffice ; to add to them , we should have to overstep the limits we have set to this treatise , enter into ...
... exhibit considerable differences as well as analogies , a necessary result of their different natures . These few remarks must suffice ; to add to them , we should have to overstep the limits we have set to this treatise , enter into ...
Pagina 27
... exhibits three different kinds of shells . It lives either in salt water , deep water , or shallow water visited by the tide . In each of these three vicinities the shells exhibit typical aspects . The direction of boney lamella is ...
... exhibits three different kinds of shells . It lives either in salt water , deep water , or shallow water visited by the tide . In each of these three vicinities the shells exhibit typical aspects . The direction of boney lamella is ...
Pagina 28
... exhibit different characters to those of animals . With plants it is only when a young organ is born under new conditions that it exhibits new characters . This is not necessarily the case with animals . In an animal organism the ...
... exhibit different characters to those of animals . With plants it is only when a young organ is born under new conditions that it exhibits new characters . This is not necessarily the case with animals . In an animal organism the ...
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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