. Animal biology. Biology; Zoology; Physiology. ?»?.?? -H» ??• •• • •';>? *-•? • •..-;.•.;.*,? mm I I I Trachelomonas Fig. 23. «" Peranema. Bodo Phacus Monosiga Trichomonas Cercomonas Common flagellated Protozoa (Mastigophora). Nucleus of life: all living nature is one. Moreover it is not possible to draw a hard and fast line between the Mastigophora and the Sarcodina because certain organisms possess both flagella and pseudopodia during various phases of their life. (Figs. 18, 22, 23.) The Mastigophora are very widely distributed in sea, pond, and infusions of organic matter. An immen
. Animal biology. Biology; Zoology; Physiology. ?»?.?? -H» ??• •• • •';>? *-•? • •..-;.•.;.*,? mm I I I Trachelomonas Fig. 23. «" Peranema. Bodo Phacus Monosiga Trichomonas Cercomonas Common flagellated Protozoa (Mastigophora). Nucleus of life: all living nature is one. Moreover it is not possible to draw a hard and fast line between the Mastigophora and the Sarcodina because certain organisms possess both flagella and pseudopodia during various phases of their life. (Figs. 18, 22, 23.) The Mastigophora are very widely distributed in sea, pond, and infusions of organic matter. An immense order, the Dinoflagel- lida, constitutes not a small part of the microscopic life of the sea, competing with the Sarcodina and microscopic plants in variety of species and number of individuals — numbers so immense that wide areas of the sea may become discolored or appear phosphorescent. Others, such as the Trypanosomes, have invaded the field of parasitism, living in the digestive tract and blood stream of higher animals. (Figs. 24, 224.) The versatility of the Mastigophora in FlG- 24-~ A Dinoflagdlate, mode oi lite and nutrition apparently im- plies a high potential of adaptation and evolution. Indeed, it is among them that certain interesting associations, or colonies, of Flagella. 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 Woodruff, Lorande Loss, 1879-1947. New York The Macmillan company
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