General physiology; an outline of the science of life . r one another,plainly showing that they possess no fixed position but changetheir places constantly and irregularly in the unitary protoplasmicmass. Here individual cell-territories are not marked off within theprotoplasmic body. According to the above criterion, therefore,we would be obliged to regard the plasmodia as multinucleate 74 GENERAL PHYSIOLOGY cells. But the origin of the Myxomycete plasmodia renders sucha view uncertain. Myxomycetes reproduces by spores, , by smallmicroscopic capsules, the shells of which burst and give ex
General physiology; an outline of the science of life . r one another,plainly showing that they possess no fixed position but changetheir places constantly and irregularly in the unitary protoplasmicmass. Here individual cell-territories are not marked off within theprotoplasmic body. According to the above criterion, therefore,we would be obliged to regard the plasmodia as multinucleate 74 GENERAL PHYSIOLOGY cells. But the origin of the Myxomycete plasmodia renders sucha view uncertain. Myxomycetes reproduces by spores, , by smallmicroscopic capsules, the shells of which burst and give exit ineach case to a small naked cell, which is capable of changing itsshape and is provided with one nucleus (Fig. 15, a, b, c). A verylarge number of the spores always coexist and many separate cellscreep out at the same time. These cells soon creep together,coalesce, and thus form a larger, unitary, protoplasmic mass, whichcontains a number of nuclei (Fig. 15 e,f). The mass grows by itsown nutritive efforts, the nuclei multiply by division, and thus.
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Keywords: ., bookcentury1800, bookdecade1890, bookidgen, booksubjectphysiology
