Evolution by Atrophy in Biology and SociologyD. Appleton, 1899 - 316 pagini |
Din interiorul cărții
Rezultatele 1 - 5 din 54
Pagina 15
... examples suffice to show 1 When two organs are united into one whole , the cell exercises two totally different functions . The liver , as we now know , is a double organ consisting of a bile - forming liver , and the glycogen ...
... examples suffice to show 1 When two organs are united into one whole , the cell exercises two totally different functions . The liver , as we now know , is a double organ consisting of a bile - forming liver , and the glycogen ...
Pagina 25
... examples will demonstrate this point : Self - mutilation is a very common phenomenon among Echinoderms . Among ... example of functional evolution ( Romanes ) . With some of these ( the 1 Evolution fonctionnelle du système nerveux . J ...
... examples will demonstrate this point : Self - mutilation is a very common phenomenon among Echinoderms . Among ... example of functional evolution ( Romanes ) . With some of these ( the 1 Evolution fonctionnelle du système nerveux . J ...
Pagina 26
... EXAMPLES : ( a ) The leaves of the water Ranunculus with lacinated leaves ( Ranunculus aquatilis fluitans , etc. ) , are of normal structure when cultivated on dry land . The epidermis is furnished with stomata and the constituent cells ...
... EXAMPLES : ( a ) The leaves of the water Ranunculus with lacinated leaves ( Ranunculus aquatilis fluitans , etc. ) , are of normal structure when cultivated on dry land . The epidermis is furnished with stomata and the constituent cells ...
Pagina 27
... example of this individual adaptation may be obtained by cultivating Cacti alternately in the light and in the dark ... examples of indi- vidual adaptation . The gradual drying up of Lake Aral caused the formation of a number of basins ...
... example of this individual adaptation may be obtained by cultivating Cacti alternately in the light and in the dark ... examples of indi- vidual adaptation . The gradual drying up of Lake Aral caused the formation of a number of basins ...
Pagina 29
... examples abound among animals , especially in the lower zoological groups.1 1 Loeb has shown that in certain groups , when the organism , after having been wounded , is subjected to unusual light , position , or pressure , organs are ...
... examples abound among animals , especially in the lower zoological groups.1 1 Loeb has shown that in certain groups , when the organism , after having been wounded , is subjected to unusual light , position , or pressure , organs are ...
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