A) Cephalochordata
B) Hemichordata
C) Urochordata
D) Protochordata
Correct Answer: C
Solution :
Herdmania belongs to phylum Chordata and subphylum Urochordata. Urochordates are characterized by the confinement of the notocnord and the nerve cord to the tail of their larvae. Urochordates are also known as tunicates because their body is surrounded by protective leathery tunic or test. Hemichordates are exclusively marine, have stomochord in the roof of buccal cavity and considered as connecting link between echinoderms and chordates. e.g., Balanoglossus. In. Cephalochordates notochord and nervechord present throughout life e.g., Branchiostoma. The Hemichordata, Urochordata and Cephalochordata are included under protochordates.
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