Balanoglossus belongs to
A. Cephalochordata
B. Hemichordata
C. Urochordata
D. Echinodermata
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Answer: B. Hemichordata
Balanoglossus (acorn worm) is a hemichordate; it has a notochord only in the proboscis.
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· 24 Oct 2026
AI-verified · Oct 2026
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