Question:
Sort out the animals on the basis of their symmetry (radial or bilateral) coelenterates, ctenophores, annelids, arthropods, and echinoderms.
Solution:
In radial symmetry, the body of an individual can be divided into equal halves by any plans passing through the longitudinal axis. Radial symmetry: Coelenterates, Ctenophores, Echinoderms
In bilateral symmetry, the body can be divided into two halves when the plane passes through the median longitudinal axis. Bilateral symmetry: Annelids, Arthropods.