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Updated: May 15, 2025
Here ending this general survey of the facts which justify the comparison of a society with a living body, let us look at them in detail. We shall find that the parallelism becomes the more marked the more closely it is examined. The lowest animal and vegetal forms Protozoa and Protophyta are chiefly inhabitants of the water.
Though in those microscopic Protophyta and Protozoa inhabiting the water the spores of algæ, the gemmules of sponges, and the infusoria generally we see locomotion produced by ciliary action; yet this locomotion, while rapid relatively to their sizes, is absolutely slow.
The earliest ancestors of our race were simple Protophyta, and from these our protozoic ancestors were developed afterwards. From the morphological point of view both the vegetal and the animal Protists were simple organisms, individualities of the first order, or plastids.
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