. Adventures with animals and plants. Biology. Fresh water Sponge ^^ Ameba. Fig. 49 The invertebrates are classified by zoologists into mmierous phyla. One vtem- ber of each of the nine principal phyla is illustrated above. Do you know other members of these phyla?. 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 Kroeber, Elsbeth, 1882-; Wolff, Walter Harold, 1901-. Boston : D. C. Heath

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Keywords: ., bookcentury1900, bookpublisherbostondcheath, booksubjectbiology