A) Echinodermata
B) Coelenterata
C) Arthropoda
D) Protozoa
Correct Answer: A
Solution :
: Echinodermata is a phylum of marine invertebrates that includes the sea urchins, starfish,. brittle stars, and sea cucumbers. The adult animal in this phylum is radially symmetrical, but its larva exhibits bilateral symmetry.
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