Which of the following features is present in | vedclass

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Question

(D) The phylum $Chordata$ is characterized by the presence of three fundamental features at some stage of their life cycle: $1$. $Notochord$: $A$ flex

Vedclass · Accepted Answer

All of the above

Vedclass · Answer

(D) The phylum $Chordata$ is characterized by the presence of three fundamental features at some stage of their life cycle: $1$. $Notochord$: $A$ flexible, rod-like structure providing support. $2$. $Dorsal$ $hollow$ $nerve$ $cord$: $A$ nerve cord located dorsally to the notochord. $3$. $Pharyngeal$ $gill$ $slits$: Openings in the pharyngeal region. Since all three features are characteristic of chordates, the correct answer is $D$.

Which of the following features is present in all chordates at some stage of their life?

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