The Science of Life, Volumen 4Cassell, 1931 - 896 páginas |
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Página 443
... trees with long leaves , stiff band - shaped twigs up to a yard long and gathered into extraordinary clusters sticking up like fat gigantic paint - brushes , sometimes only one brush to each tree , sometimes two or four or eight . And ...
... trees with long leaves , stiff band - shaped twigs up to a yard long and gathered into extraordinary clusters sticking up like fat gigantic paint - brushes , sometimes only one brush to each tree , sometimes two or four or eight . And ...
Página 469
... trees or woody shrubs . The present abundant supply of herbaceous plants came later . This it is probable had something to do with do with the progressive sharpening of the climate . For one thing much land previously covered by forest ...
... trees or woody shrubs . The present abundant supply of herbaceous plants came later . This it is probable had something to do with do with the progressive sharpening of the climate . For one thing much land previously covered by forest ...
Página 590
... trees instead of one or a few dominant species . In monsoon districts , where rainfall is heavy but intermittent , the forests cease to be evergreen ; they drop their leaves in the dry season . As we pass north and south towards the sub ...
... trees instead of one or a few dominant species . In monsoon districts , where rainfall is heavy but intermittent , the forests cease to be evergreen ; they drop their leaves in the dry season . As we pass north and south towards the sub ...
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