The Science of Life, Volumen 4Cassell, 1931 - 896 páginas |
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Página 33
... blood consists of cells float- ing in a non - living watery fluid , and the watery part sustains most of the transport duties of blood . § 3 Blood " The life which is the blood thereof , " says the Bible , and we may best go on to our ...
... blood consists of cells float- ing in a non - living watery fluid , and the watery part sustains most of the transport duties of blood . § 3 Blood " The life which is the blood thereof , " says the Bible , and we may best go on to our ...
Página 36
... blood passes into smaller and smaller canals . At each division the cross area of the two branches taken together somewhat exceeds that of the original trunk , so that the blood travels more and more slowly as it finds its way into ...
... blood passes into smaller and smaller canals . At each division the cross area of the two branches taken together somewhat exceeds that of the original trunk , so that the blood travels more and more slowly as it finds its way into ...
Página 39
... blood is enormous ; a single cubic centi- metre of blood will have about ten thousand square centimetres of surface at which chemical interchanges can take place . So we come to what we have already seen in the frog's foot . Fig . 17. A ...
... blood is enormous ; a single cubic centi- metre of blood will have about ten thousand square centimetres of surface at which chemical interchanges can take place . So we come to what we have already seen in the frog's foot . Fig . 17. A ...
Índice
THE RANGE NATURE AND STUDY OF LIVING THINGS | 3 |
66 | 5 |
muscles and related | 8 |
Otras 62 secciones no se muestran.
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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