Charecters of a phylum are given below. Read those carefully and name the phylum.
a. Spines of calcium carbonate are present on the body.
b. These animals are exclusively marine.
c. They perform the locomotion with the help of tube feet.
d. Their skeleton is mode up of calcareous plates or spicules.

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Solution

They are characteristicsof the Phylum echinodermata e.g: sea cucumber, brittle star etc. They are exclusively marine, perform locomotion by means of tube feet, have spines covering their body that are made of calcium carbonate, and have a skeleton made of calcareous plates.

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