Which of the following animals is not a verte | vedclass

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(D) The correct answer is $D$. $Amphioxus$ (also known as $Branchiostoma$ or lancelet) belongs to the subphylum $Cephalochordata$. In $Cephalochordate

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Amphioxus

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(D) The correct answer is $D$. $Amphioxus$ (also known as $Branchiostoma$ or lancelet) belongs to the subphylum $Cephalochordata$. In $Cephalochordates$,the notochord persists throughout their life and is not replaced by a vertebral column. Therefore,they are considered protochordates and not true vertebrates (subphylum $Vertebrata$). $Oryctolagus$ (rabbit),$Eurotyphlis$ (a type of caecilian amphibian),and $Sparrow$ (bird) are all vertebrates.

Which of the following animals is not a vertebrate?

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