The Science of Life, Volumen 4Cassell, 1931 - 896 páginas |
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Página 8
... less and less pressure , the expansive force of the gas within is less and less restrained , until at last the creature rushes up to the surface and arrives there distended or burst and dead . The ocean at its deepest goes down perhaps ...
... less and less pressure , the expansive force of the gas within is less and less restrained , until at last the creature rushes up to the surface and arrives there distended or burst and dead . The ocean at its deepest goes down perhaps ...
Página 144
... less distinct . All the organisms that were examined hitherto are individualized communities of cells just as we are , but in some of them the organization of the community is a little less definite , less inflexible than it is in ...
... less distinct . All the organisms that were examined hitherto are individualized communities of cells just as we are , but in some of them the organization of the community is a little less definite , less inflexible than it is in ...
Página 205
... less elaborate grinding system , and were much shorter . Fossil bones of these shall we call them the fathers of the horses ? -are not uncommon in China , and ( with others ) are dug up to be sold to apothecaries as " dragons ' teeth ...
... less elaborate grinding system , and were much shorter . Fossil bones of these shall we call them the fathers of the horses ? -are not uncommon in China , and ( with others ) are dug up to be sold to apothecaries as " dragons ' teeth ...
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