Choose the term that does not belong in the following group and explain why it does not belong? Notochord, cephalisation, dorsal nerve cord and radial symmetry.

Explanation

'Radial symmetry' is the term that does not belong to the group.
Reason: Notochord, Cephalization, dorsal nerve cord are characteristic features of Phylum chordata. This Phylum comprises of animals with bilateral symmetry. Hence the term radial symmetry does not belong to the group.