Protochordates and Agnatha | Zoology | S Chand Academy

This video describes the basic features of phylum Chordata, its general characteristics and further classification upto sub-phylum and class level. Besides the description of protochordates, general features of agnata, i.e. jawless fish have also been described. Commonly known lamp-rays, have been featured and described as a representative of class Agnatha.
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