Adult echinoderms are: Phylum Echinodermata Mcqs August 28, 2019 BILAL KHATTAK0 A.Radially symmetrical B.Bilaterally symmetrical C.Biradially symmetrical D.None of these Related Mcqs: Larvae of echnoderms are: Hydra is: A hydrozoan polyp is: Sponges are : Larva of star-fish is: Diversification of brachiopods, copepods, primitive echinoderms and arachnids occurred in: The diameter of eye ball in an adult man is: Dental formula for an adult man is: A tadpole of frog metamorphoses into adult after: Kidney of adult frog is formed by: