All chordates at one or the other stage posse | vedclass

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Question

(B) The fundamental characteristics of the phylum $Chordata$ include the presence of a notochord,a dorsal hollow nerve cord,and paired pharyngeal gill

Vedclass · Accepted Answer

Pharyngeal gill-slits

Vedclass · Answer

(B) The fundamental characteristics of the phylum $Chordata$ include the presence of a notochord,a dorsal hollow nerve cord,and paired pharyngeal gill-slits at some stage of their life cycle.While not all chordates possess a vertebral column (e.g.,$Urochordata$ and $Cephalochordata$),all chordates exhibit pharyngeal gill-slits at some point during their development.Therefore,the presence of pharyngeal gill-slits is a diagnostic feature common to all chordates.

All chordates at one or the other stage possess

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