The Science of Life, Volumen 4Cassell, 1931 - 896 páginas |
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Página 30
... cytoplasm . Most conspicuous among these bodies are certain regular globules , more or less numerous , which appear to the observer as brilliant shining spheres . These we now know are tiny droplets of oil . They move about the cell ...
... cytoplasm . Most conspicuous among these bodies are certain regular globules , more or less numerous , which appear to the observer as brilliant shining spheres . These we now know are tiny droplets of oil . They move about the cell ...
Página 309
... ( cytoplasm ) play no part at all ? We cannot answer with an absolute No. Recent research has produced instances that seem to establish cytoplasmic inheritance in certain types , but the weight of the evidence seems to be that these ...
... ( cytoplasm ) play no part at all ? We cannot answer with an absolute No. Recent research has produced instances that seem to establish cytoplasmic inheritance in certain types , but the weight of the evidence seems to be that these ...
Página 310
... cytoplasmic repro- duction may still linger in obscurity . Finally , in that matter of the developing embryo . It is ... cytoplasm are in the last analysis con- trolled by the chromosomes of the mother ; and it has been proved in a ...
... cytoplasmic repro- duction may still linger in obscurity . Finally , in that matter of the developing embryo . It is ... cytoplasm are in the last analysis con- trolled by the chromosomes of the mother ; and it has been proved in 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