. A text-book of agricultural zoology. Zoology, Economic. .-« Pig. 2.—Ajkeba (greatly magnified). i. Large specimen, showing structure, ii. A smaller specimen in process of division, iii. Later stage of ii. a and n, nucleus; h and cv, contractile vacuoles; Fv, food vacuoles; Fsu, pseudopodia. sists of organisms stiU smaller than the amoebse are themselves. Amoeba reproduces by the primitive method of " fission" or division. The nucleus of the amoeba divides into two (fig. 2, ii. and iii., a), and one of these nuclei, surrounded by part of the original protoplasm, breaks off and
. A text-book of agricultural zoology. Zoology, Economic. .-« Pig. 2.—Ajkeba (greatly magnified). i. Large specimen, showing structure, ii. A smaller specimen in process of division, iii. Later stage of ii. a and n, nucleus; h and cv, contractile vacuoles; Fv, food vacuoles; Fsu, pseudopodia. sists of organisms stiU smaller than the amoebse are themselves. Amoeba reproduces by the primitive method of " fission" or division. The nucleus of the amoeba divides into two (fig. 2, ii. and iii., a), and one of these nuclei, surrounded by part of the original protoplasm, breaks off and floats away ; thus one amoeba becomes two. This division may go on until one amoeba has given rise to hundreds. But by degrees each amoeba becomes smaller and smaller, and they would eventually die out. To counteract this, what is known as " rejuvenescence " takes place. Eejuvenescence is the union or conjugation of two amoebae,. 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 Theobald, Frederick Vincent, 1868-1930. Edinburgh and London, W. Blackwood and sons
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectzoology, bookyear1899
