. Outlines of zoology. Zoology. Fig. 22.—Karyokinesis. —After Fleniming. Coil stage of nucleus ; , central corpuscle. Division of chromatin elements into U-shaped loops, and longi- tudinal splitting of these (astroid stage). 4. Recession of chromatin elements from the equator of the cell (diastroid). Nuclear spindle, with chromatin elements at each pole, and achromatin threads between. Division of the cell completed. limit of growth ? The answer is as follows :—Suppose a young cell has doubled its original mass, that means that there is twice as much living matter to be kept alive. But the
. Outlines of zoology. Zoology. Fig. 22.—Karyokinesis. —After Fleniming. Coil stage of nucleus ; , central corpuscle. Division of chromatin elements into U-shaped loops, and longi- tudinal splitting of these (astroid stage). 4. Recession of chromatin elements from the equator of the cell (diastroid). Nuclear spindle, with chromatin elements at each pole, and achromatin threads between. Division of the cell completed. limit of growth ? The answer is as follows :—Suppose a young cell has doubled its original mass, that means that there is twice as much living matter to be kept alive. But the living matter is fed, aerated, purified through its surface, which, in growing spherical cells, for instance, only increases as the square of the radius, while the mass increases as the. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Thomson, J. Arthur (John Arthur), 1861-1933. Edinburgh, Glasgow and London, H. Frowde and Hodder & Stoughton
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Keywords: ., bookauthorth, bookcentury1800, bookdecade1890, booksubjectzoology
