Question

which phylum have body spiny and radial symmetry??

which phylum have bones light and hollow??which phylun have 4 pairs of jointed legs and no wings??which phylum have soft bodied animals supported by calcaneous shells??which phylum have external ear or pinna ??

Answer 1

a- Echinodermata have spiny body and radial symmetry
b- Class Aves (birds) of phylum Chordata have hallow and light bones
c- Class Arachnids of phylum Arthropoda have 4 pairs of jointed legs but no wings
d- Phylum Mollusca have soft bodied animals supported by calcareous shells.
e- Class Mammalia of phylum​ Chordata have external ear or pinna.