The animals with bilateral symmetry in the young stage and radial pentamerous symmetry in the adult stage, belong to the phylum:

1. Mollusca 2. Cnidaria
3. Echinodermata 4. Annelida
Subtopic:  Phylum Echinodermata |
 90%
Level 1: 80%+
AIPMT - 2004
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