Which of the following animals is known as an | vedclass

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(D) Invertebrate chordates are organisms that possess a notochord at some stage of their life cycle but lack a vertebral column. These are also known

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Salpa

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(D) Invertebrate chordates are organisms that possess a notochord at some stage of their life cycle but lack a vertebral column. These are also known as protochordates. $1$. $Balanoglossus$ belongs to the phylum $Hemichordata$, which was previously considered a subphylum of $Chordata$ but is now classified separately. $2$. $Salpa$ belongs to the subphylum $Urochordata$ (Tunicata) of the phylum $Chordata$. In $Urochordata$, the notochord is present only in the larval tail. $3$. $Hagfish$ and $Lamprey$ are $Cyclostomes$, which are vertebrates (craniates). Therefore, $Salpa$ is the correct example of an invertebrate chordate (protochordate) among the given options.

Which of the following animals is known as an invertebrate chordate?

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