Respuesta :
Answer:
Definitely is ECHINODERMATA
Explanation:
Echinoderms are marine invertebrates characterized by radial symmetry, they are animals that have 5 or more arms. This phylum includes, among others species, sea urchins, sea cucumbers, brittle stars, starfish, crinoids and sand dollars
Answer:
Phylum Echinodermata
Explanation:
Members of this phylum can be seen at the sea beds and inter tidal -zones. They all live in marine habitat, thus they are not found in any other aquatic or terrestrial habitat. Their circulatory system is made up of vascular system of water. This provides mechanism for supply of nutrients, removal of wastes, for movements,and exchange of gases.
Their symmetry is radial, thus an imaginary longitudinal plane passing through the central body points divides them to many parts.
They can not swim, their vascular system of water aided their locomotion.