The Science of Life, Volumen 4Cassell, 1931 - 896 páginas |
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Página 547
... Regions of Rock , Snow , and Ice At the other extreme from the fantastic luxuriance of the tropical forest come the polar regions and their isolated counter- parts , the bits of mountain - chains that protrude above the snow line . At ...
... Regions of Rock , Snow , and Ice At the other extreme from the fantastic luxuriance of the tropical forest come the polar regions and their isolated counter- parts , the bits of mountain - chains that protrude above the snow line . At ...
Página 768
... regions discussed in the text . Areas concerned with sensations are stippled , those which control move- ments are shaded . THE CORTEX AT WORK 1. Pavlov . § 2. What. ། study , forethought , and appropriate prepar- ation . Thus the growth ...
... regions discussed in the text . Areas concerned with sensations are stippled , those which control move- ments are shaded . THE CORTEX AT WORK 1. Pavlov . § 2. What. ། study , forethought , and appropriate prepar- ation . Thus the growth ...
Página 869
... regions it became settled , but over great areas of land where the grass was inter- mittent it roved with its cattle , and be- came nomadic . And in forests , tropical uplands and mountain regions it devel- oped minor systems of living ...
... regions it became settled , but over great areas of land where the grass was inter- mittent it roved with its cattle , and be- came nomadic . And in forests , tropical uplands and mountain regions it devel- oped minor systems of living ...
Índice
THE RANGE NATURE AND STUDY OF LIVING THINGS | 3 |
66 | 5 |
muscles and related | 8 |
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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