The Science of Life, Volumen 4Cassell, 1931 - 896 páginas |
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Página 50
... units that we need , and units which have to be handled with care lest they themselves be broken . The reader will be familiar with the way in which mass - produced motor - cars are assembled . There is a long moving plat- form on to ...
... units that we need , and units which have to be handled with care lest they themselves be broken . The reader will be familiar with the way in which mass - produced motor - cars are assembled . There is a long moving plat- form on to ...
Página 291
... units , and that the properties of the wholes in this case , the hereditary constitutions of animals and plants - result directly from the particu- lar combination of their component units . According to the atomic theory , the atom - units ...
... units , and that the properties of the wholes in this case , the hereditary constitutions of animals and plants - result directly from the particu- lar combination of their component units . According to the atomic theory , the atom - units ...
Página 292
... units whose business is with the control of flower - colour . And these units , he supposed , were self - perpetuating , and did not mix with each other . To - day we call these units by the technical name of genes . All the countless ...
... units whose business is with the control of flower - colour . And these units , he supposed , were self - perpetuating , and did not mix with each other . To - day we call these units by the technical name of genes . All the countless ...
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