Which of the following organisms possesses a | vedclass

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(A) The notochord is a characteristic feature of the phylum $Chordata$. In the subphylum $Cephalochordata$,the notochord extends from the head to the

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Amphioxus

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(A) The notochord is a characteristic feature of the phylum $Chordata$. In the subphylum $Cephalochordata$,the notochord extends from the head to the tail region and persists throughout the entire life of the organism. $Amphioxus$ (also known as $Branchiostoma$ or lancelet) is a classic example of $Cephalochordata$. In contrast,$Salpa$ and $Ascidia$ belong to $Urochordata$,where the notochord is present only in the larval tail. $Balanoglossus$ belongs to the phylum $Hemichordata$,which is not a true chordate.

Which of the following organisms possesses a notochord that extends from head to tail throughout its entire life?

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