Choose the term that does not belong in the following group and explain why it does not belong?
Answer»
Notochord, cephalisation, dorsal nerve cord and radial symmetry.
Notochord, cephalisation and dorsal nerve cord are the characteristic features of chordates. The radial symmetry is not a characteristic feature of chordate. It is the feature of cnidarian and adult echinoderms. Hence it does not belong to the group.