Evolution by Atrophy in Biology and SociologyD. Appleton, 1899 - 316 pagini |
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Pagina
... ( limbs ) . 41 Limbs adapted to an aquatic life ( Ceratodus , Ortha- canthus , Protopterus amphibius , Protopterus annec- tens , Lepidosiren Limbs adapted to a terrestrial life ** 43 43 PAGE 1. Adaptation to walking on two legs ( man ...
... ( limbs ) . 41 Limbs adapted to an aquatic life ( Ceratodus , Ortha- canthus , Protopterus amphibius , Protopterus annec- tens , Lepidosiren Limbs adapted to a terrestrial life ** 43 43 PAGE 1. Adaptation to walking on two legs ( man ...
Pagina
... . 222 1. Plants 222 2. Animals . Teratology of the horse , Hypertrichosis , etc. Swimming limbs in Stomatopoda and De- capoda Macroura 223 Section II . Disappeared institutions 227 ( 1 ) Apparent revival of bygone institutions ( 2 CONTENTS.
... . 222 1. Plants 222 2. Animals . Teratology of the horse , Hypertrichosis , etc. Swimming limbs in Stomatopoda and De- capoda Macroura 223 Section II . Disappeared institutions 227 ( 1 ) Apparent revival of bygone institutions ( 2 CONTENTS.
Pagina 2
... limbs . ( 2 ) Epicotyl and primary leaf of Nymphaea . ( 3 ) Roots of Utricularia ; coty- ledons of parasitic plants ( Cuscuta , Orobanche ) ; leaves transformed to spines in Phyllocactus crenatus . ( 4 ) Atrophy of the branchial arches ...
... limbs . ( 2 ) Epicotyl and primary leaf of Nymphaea . ( 3 ) Roots of Utricularia ; coty- ledons of parasitic plants ( Cuscuta , Orobanche ) ; leaves transformed to spines in Phyllocactus crenatus . ( 4 ) Atrophy of the branchial arches ...
Pagina 41
... limbs among vertebrates , but they are universally supposed to have developed from the lateral folds which still ... limbs , but between them ) . At first the only skeleton of these lateral rods consisted TRANSFORMATION OF ORGANS OF ...
... limbs among vertebrates , but they are universally supposed to have developed from the lateral folds which still ... limbs , but between them ) . At first the only skeleton of these lateral rods consisted TRANSFORMATION OF ORGANS OF ...
Pagina 42
... limbs of vertebrates was ultimately formed . The skeleton of limbs then consisted originally of a certain number of parallel rods . One of these rods , lying in the long axis of the future limb , became longer than the others , while ...
... limbs of vertebrates was ultimately formed . The skeleton of limbs then consisted originally of a certain number of parallel rods . One of these rods , lying in the long axis of the future limb , became longer than the others , while ...
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