Question

15. Protochordates includes ?

(a) Urochordata + Hemichordata (b) Hemichordata + Vertibrata

(c) Vertebrate + Cephalochordata (d) Urochoradata + Cephalochordata​

Answer 1

I think (a.)

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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.

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#Hope it helps u....