The Science of Life, Volumen 4Cassell, 1931 - 896 páginas |
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Página 82
... position . The ear is a sense - organ for perceiving the qualities of sounds ; ideas of the direction from which sounds are coming are generally vague , based , for example , on the relative intensities with which they are heard in the ...
... position . The ear is a sense - organ for perceiving the qualities of sounds ; ideas of the direction from which sounds are coming are generally vague , based , for example , on the relative intensities with which they are heard in the ...
Página 84
... position is abnormal . The inner ear , then , is a complex of several ingenious anatomical devices for stimulating touch - cells whenever certain conditions arise - conditions which themselves do not excite living proto- plasm directly ...
... position is abnormal . The inner ear , then , is a complex of several ingenious anatomical devices for stimulating touch - cells whenever certain conditions arise - conditions which themselves do not excite living proto- plasm directly ...
Página 107
... position and in the fact that they are supported by skeletal girdles inside the body . Many of the differences in external appearance between a dogfish and a mam- mal may be directly correlated with the fact that the former lives in the ...
... position and in the fact that they are supported by skeletal girdles inside the body . Many of the differences in external appearance between a dogfish and a mam- mal may be directly correlated with the fact that the former lives in the ...
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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