Define Hemichordata. Explain.
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any of a phylum (Hemichordata) of wormlike marine animals (such as an acorn worm) that have in the proboscis an outgrowth of the pharyngeal wall which superficially resembles the notochord of chordates
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Hemichordata refers to plan which contain worm like marnine animal with the proboscis as an outgrowth of the pharyngeal wall.mostly eat lives in marnine habitat .
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a small phylum of marine invertebrates that comprises the acorn worms.
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