Which of the following is NOT found in verteb | vedclass

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(D) Vertebrates are characterized by the presence of a notochord during the embryonic stage,which is replaced by a vertebral column in adults. They ex

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Pseudocoelom

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(D) Vertebrates are characterized by the presence of a notochord during the embryonic stage,which is replaced by a vertebral column in adults. They exhibit bilateral symmetry,possess pharyngeal gill slits at some stage of their life cycle,and often have scales on their body (e.g.,in fish and reptiles). Pseudocoelom (a body cavity not fully lined by mesoderm) is a characteristic feature of Phylum $Aschelminthes$ (roundworms),not vertebrates. Therefore,pseudocoelom is not found in vertebrates.

Which of the following is $NOT$ found in vertebrates?

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