The Science of Life, Volumen 4Cassell, 1931 - 896 páginas |
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Página 83
... head is suddenly moved horizontally from right to left - i.e . , in the plane of the lateral canal ( a sudden backward glance over the shoulder would involve such a movement ) . The labyrinth , as we have seen , is full of a lymph ...
... head is suddenly moved horizontally from right to left - i.e . , in the plane of the lateral canal ( a sudden backward glance over the shoulder would involve such a movement ) . The labyrinth , as we have seen , is full of a lymph ...
Página 341
... head - size , the female - determiners or X - bearers having bigger heads than their X - less and male - determining brethren . This expectation can be tested by measure- ment , and measurement shows it to be correct . There is a ...
... head - size , the female - determiners or X - bearers having bigger heads than their X - less and male - determining brethren . This expectation can be tested by measure- ment , and measurement shows it to be correct . There is a ...
Página 575
... head , and to the head of an unnaturally diminutive alligator ; and even if the resemblance be useful now , what advantage could have been secured by the early and incomplete stages in its evolution ? This last question is not nearly ...
... head , and to the head of an unnaturally diminutive alligator ; and even if the resemblance be useful now , what advantage could have been secured by the early and incomplete stages in its evolution ? This last question is not nearly ...
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