Evolution by Atrophy in Biology and SociologyD. Appleton, 1899 - 316 pagini |
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Pagina 8
... regarded as organisms , or organisms as particular kinds of societies.2 1 Invention is frequently a combination of several imitations . When a society is formed , its characters are not necessarily borrowed from those societies from ...
... regarded as organisms , or organisms as particular kinds of societies.2 1 Invention is frequently a combination of several imitations . When a society is formed , its characters are not necessarily borrowed from those societies from ...
Pagina 11
... regarded as an intermediate condition between an individual and a society . No known society has passed through a colonial stage , and the members of a colony could not , on separating , become a society . Among the simplest aggregates ...
... regarded as an intermediate condition between an individual and a society . No known society has passed through a colonial stage , and the members of a colony could not , on separating , become a society . Among the simplest aggregates ...
Pagina 13
... regarded as a distinct 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 ...
... regarded as a distinct 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 ...
Pagina 15
... regarded as are the United States of America , as the organs of an organism in process of formation ? These few examples suffice to show 1 When two organs are united into one whole , the cell exercises two totally different functions ...
... regarded as are the United States of America , as the organs of an organism in process of formation ? These few examples suffice to show 1 When two organs are united into one whole , the cell exercises two totally different functions ...
Pagina 25
... regarded from a physiological , as well as from an anatomical standpoint , 1 but , in the former case , evolution is less a set of changes of function than an increasing specialization and division of labour , and under these ...
... regarded from a physiological , as well as from an anatomical standpoint , 1 but , in the former case , evolution is less a set of changes of function than an increasing specialization and division of labour , and under these ...
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
abdominal adaptation to arboreal adult ancestral animal apical leaves appendages aquatic Archaeopteryx assimilative Astacus Astacus fluviatilis atrophy basilar leaves basipodite become biology bipinnated blade branches calcaneum cells characters chlorophyll Choanoflagellates claw collective property colony communities complete condition consists Crustacea custom degenerative evolution digits disappeared Dollo Echinoderms embryology endopodite epipod exhibited existence exopodite ex female fins five-toed floating leaves flowers foliage leaves formed function gill Heterocephalus Huxley hypopod instance institutions joint land larvæ Lathyrus Aphaca leaf leaflets limbs male mammals marriage maxillipede membrane mesonephros metameres metatarsals modification normal origin pairs petiole phalanges physiological pineal eye plants podite primitive progressive protopodite pr Ranunculus reduced regarded remain represented result rods Rosa rugosa rudimentary organs segment social societies sociology species stages stamens stem stipules stomata structure survival tarsius tendrils terrestrial thalamencephalon third tion transformation undergone useless vertebrates vestiges walking legs
Pasaje populare
Pagina 326 - XI. ANIMAL MECHANISM : a Treatise on Terrestrial and Aerial Locomotion. By Professor EJ Marey. With 117 Illustrations. Second Edition. Crown 8vo. price 5*. XII. THE DOCTRINE OF DESCENT AND DARWINISM. By Professor Oscar Schmidt. With 26 Illustrations. Fourth Edition. Crown 8vo. price 5*. XIII. THE HISTORY OF THE CONFLICT BETWEEN RELIGION AND SCIENCE. By JW Draper, MD, LL.D. Fifteenth Edition. Crown 8vo. price 5*. XIV. FUNGI: their Nature, Influences Uses, &c.
Pagina 326 - II. Physics and Politics ; or, Thoughts on the Application of the Principles of "Natural Selection " and " Inheritance
Pagina 326 - XI. Animal Mechanism : a Treatise on Terrestrial and Aerial Locomotion. By Professor EJ Marey. With 117 Illustrations. Second Edition. Crown 8vo, $s. XII. The Doctrine of Descent and Darwinism. By Professor Oscar Schmidt. With 26 Illustrations. Fifth Edition. Crown 8vo, 5*.
Pagina 82 - A plant of Drosera, with the edges of its leaves curled inwards, so as to form a temporary stomach, with the glands of the closely inflected tentacles pouring forth their acid secretion, which dissolves animal matter, afterwards to be absorbed, may be said to feed like an animal.
Pagina 326 - Edition. II. PHYSICS and POLITICS ; or, Thoughts on the Application of the Principles of ' Natural Selection ' and ' Inheritance