Animal Kingdom Question 69
69. The animals with bilateral symmetry in young stage, and radial pentamerous symmetry in the adult stage, belong to the phylum
(a) Annelida
(b) Mollusca
(c) Cnidaria
(d) Echinodermata
Show Answer
Answer : d
Hints & Solutions
(d) Echinoderms showbilateral symmetry in their larval stage and pentamerous radial symmetry in the adult stage. Annelids are bilaterally symmetrical, coelenterates show radial symmetry. Molluscs are also bilaterally symmetrical.
