The Science of Life, Volumen 4Cassell, 1931 - 896 páginas |
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Página 131
... important organs are placed . The Common Whelk ( Buccinum undatum ) coming out of. tary muscles of a vertebrate or an arthropod ; their locomotor apparatus consists generally of an apparently disorderly tangled mass of muscle - fibres ...
... important organs are placed . The Common Whelk ( Buccinum undatum ) coming out of. tary muscles of a vertebrate or an arthropod ; their locomotor apparatus consists generally of an apparently disorderly tangled mass of muscle - fibres ...
Página 171
... important aspect of the curious methods of multiplication that are found among these tiny creatures , another reason why they can increase so rapidly . We have noted that the individuals are very small and that they do not survive for ...
... important aspect of the curious methods of multiplication that are found among these tiny creatures , another reason why they can increase so rapidly . We have noted that the individuals are very small and that they do not survive for ...
Página 176
... important part in human economy and are highly valuable to us . They differ in structure from other fungi and stand in an order apart . Their chemical reactions are distinctive and extra- ordinary . They are single - celled moulds ...
... important part in human economy and are highly valuable to us . They differ in structure from other fungi and stand in an order apart . Their chemical reactions are distinctive and extra- ordinary . They are single - celled moulds ...
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