The Science of Life, Volumen 4Cassell, 1931 - 896 páginas |
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Página 111
... hand is specialized for digging ; the mole and the ant - eater illustrate this . In seals and walruses , which spend a large part of their lives in water , the hands and feet are pad- dles . And many of the unguiculates can fly . The ...
... hand is specialized for digging ; the mole and the ant - eater illustrate this . In seals and walruses , which spend a large part of their lives in water , the hands and feet are pad- dles . And many of the unguiculates can fly . The ...
Página 378
... hand , show almost exclusively a combination of white with grey - blue or black ; reds , yellows or greens are never found in their Fig . 204. A very variable species . The wild pansy of Europe , Viola tricolor , in four of its numerous ...
... hand , show almost exclusively a combination of white with grey - blue or black ; reds , yellows or greens are never found in their Fig . 204. A very variable species . The wild pansy of Europe , Viola tricolor , in four of its numerous ...
Página 818
... hand ; it withdraws . It moves about like one magnet repelled by another , as the doctor moves his own hand . But if the doctor pretends that he is anxious to avoid being touched , his hand is followed about by the patient's , as if the ...
... hand ; it withdraws . It moves about like one magnet repelled by another , as the doctor moves his own hand . But if the doctor pretends that he is anxious to avoid being touched , his hand is followed about by the patient's , as if the ...
Índice
THE RANGE NATURE AND STUDY OF LIVING THINGS | 3 |
66 | 5 |
muscles and related | 8 |
Otras 62 secciones no se muestran.
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Términos y frases comunes
active algæ animals arthropods bacteria become birds blood body bones brain branches called capillaries carbon carbon dioxide cells Cenozoic changes chemical chromosomes colour creatures crustaceans digestive Echinoderms eggs elaborate embryo Eocene Everyman evolution example eyes fact female fertilized fish flatworms flowers fluid forms fossils gametes genes germ-plasm glands grow growth heart human Ichthyosaurs important individual insects intestine kidneys kinds land larvæ layer less limbs liver living things lobster lungs male mammals marsupials matter means ment microscopic million molluscs mouse mouth movements muscles mutations nervous system normal notochord Obelia organs ovary ovum oxygen pair parasitic phylum plants polyps produced proteins prothallus protozoa reproduction reptiles round secretion sense-organs sexual shell skeleton skin species spermatozoa sperms spores stage starfish stomach structure substances surface swim tail teeth thyroid tiny tion tissue to-day tube types variations various vertebrates whole worms