Question

. What do you mean by protochordates?
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Answer 1

Answer:Protochordates are an informal category of animals (i.e.: not a proper taxonomic group), named mainly for convenience to describe invertebrate animals that are closely related to vertebrates. This group is composed of the Phylum Hemichordata and the Subphyla Urochordata and Cephalochordata.

Answer 2

Protochordates are an informa category of animals. this group is composed of the phylm hemichordate and the subphyla Urochordata and cephalochordata.