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A polian vesicle is a specialized type of fluid-filled structure found in certain marine invertebrates, particularly in the phylum Cnidaria, such as jellyfish. These vesicles serve various functions, including buoyancy regulation and aiding in locomotion by allowing the organism to adjust its position in the water column. They are typically filled with a gelatinous substance and play a role in the overall physiology of these organisms.

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AnswerBot

3d ago

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