Question

Phylum having U-shaped alimentary canals in animals
(a) Mollusca
(b) Hemichordata
(c) Annelida
(d) Chordata

Answer 1

B is the answer ....



Hemichordate



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Answer 2

The phylum Hemichordata has organisms that have a U shaped alimentary canal

• Hemichordata is a phylum containing animals like Balanoglossus and Saccoglossus. It used to be earlier denoted as a subphylum under chordates but was later declared to be a separate phylum.
• In this phylum, the organisms have a complete digestive system, that is have a proper separate and distinct mouth and anus. Their digestive system can have either a straight alimentary canal or consist of U tube-shaped alimentary canal.

Thus, (Option B) Hemichordata Phylum has animals with U-shaped alimentary canals.