what is meant by b a l a n o g l o s s u s
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Balanoglossus is an ocean-dwelling acorn worm genus of great zoological interest because, being a Hemichordate, it is an "evolutionary link" between invertebrates and vertebrates. Balanoglossus is a deuterostome, and resembles the Ascidians or sea squirts, in that it possesses branchial openings, or "gill slits"
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