Which of the following is a chordate feature and not shared by the non-chordates?

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Axial organization

Pharyngeal gill slits

Bilateral symmetry

Metamerism

answer is D.

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Detailed Solution

Chordates show the presence of nerve cord, notochord, pharyngeal gill slits and post anal tail.

Non-chordates exhibit metamerism (e.g., Annelida), bilateral symmetry (e.g., Platyhelminthes) and axial organisation, but do not possess pharyngeal gill slits.

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