. The biology of the Protozoa. Protozoa; Protozoa. INTRODUCTION 35 colony forms, for example Platydorina caurlafa, thirty-two cells are aggregated in typical bilateral s\mmetry (Fig. 3, ^4). One possible mode of origin of such bilaterally symmetrical types is indicated by Urolephis mohilis (Fig. 16). Here two indi\idiials after conju- gation, fused to form a single double individual which persisted through 367 generations (see also Fig. 194, p. 466). (4) Mode of Reproduction and Form.— In this connection we have only to do with the multinucleated and with the colonial forms of Protozoa, for in
. The biology of the Protozoa. Protozoa; Protozoa. INTRODUCTION 35 colony forms, for example Platydorina caurlafa, thirty-two cells are aggregated in typical bilateral s\mmetry (Fig. 3, ^4). One possible mode of origin of such bilaterally symmetrical types is indicated by Urolephis mohilis (Fig. 16). Here two indi\idiials after conju- gation, fused to form a single double individual which persisted through 367 generations (see also Fig. 194, p. 466). (4) Mode of Reproduction and Form.— In this connection we have only to do with the multinucleated and with the colonial forms of Protozoa, for in ordinary division the daughter cells separate com-. 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 Calkins, Gary N. (Gary Nathan), b. 1869. Philadelphia, New York, Lea & Febiger
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