1.

Characters of a phylum are given below . Read them carefully and answer the question : (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 made up of calcareous plates or spicules. Give an example from that phylum.

Answer»

SOLUTION :STARFISH , brittlestar, SEA URCHIN.


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