Evolution by Atrophy in Biology and SociologyD. Appleton, 1899 - 316 páginas |
Otras ediciones - Ver todas
Evolution by Atrophy in Biology and Sociology Jean Demoor,Jean Massart,Emile Vandervelde Vista completa - 1899 |
Evolution by Atrophy in Biology and Sociology Jean Demoor,Jean Massart,Emile Vandervelde Vista completa - 1899 |
Evolution by Atrophy in Biology and Sociology Jean Demoor,Jean Massart,Emile Vandervelde Vista completa - 1899 |
Términos y frases comunes
abdominal adaptation to arboreal adaptation to leaping adult ancestral animals apical leaves appendages aquatic Archeopteryx assimilative Astacus atrophy basilar leaves become belonging biology bipinnated blade branches calcaneum cells characters chlorophyll claw collective property colony completely condition consists Crustacea custom degenerative evolution digits disappeared distal Dollo Echinoderms Edition endopodite epipod exhibited existence exopodite ex female fins five-toed flowers foliage leaves foot formed fourth function Heterocephalus Huxley hypopod individual instance institutions joint land larvæ larval leaf leaflets limbs male mammals marriage maxillipede membrane ment mesonephros metameres metatarsals modification muscles normal original pairs petiole phalanges pineal eye plants podite primitive progressive pronephros prothallus protopodite pr reduced regarded remain represented result retracing rods Rosa rugosa rudimentary organs segment slow-worm social societies sociology species stage stamens stem stipules stomata structure survival tarsius terrestrial thalamencephalon tion transformation useless vertebral column vertebrates vestiges
Pasajes populares
Página 80 - 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.