Why is it said that echinoderms show secondary radial symmetry?

Asked by Topperlearning User | 10th Jul, 2014, 01:14: PM

Expert Answer:

Echinoderms show bilateral symmetry during their larval stage and exhibit radial symmetry in adulthood. Hence, it is said that echinoderms show secondary radial symmetry.

Answered by  | 10th Jul, 2014, 03:14: PM