Phylum Echinodermata- Characteristics, classification, examples
Echinodermata (Echinoderms) Definition Echinoderms are enterocoelous coelomates with pentamerous radial symmetry, without distinct head or brain having a calcareous endoskeleton of separate plates or pieces and a peculiar water vascular system of coelomic origin with podia or tube-feet projecting out of the body. Phylum Echinodermata Characteristics They are exclusively marine and are among the most common and widely distributed marine …
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