MCQ
Radial symmetry occurs in
- AFishes
- BMolluscs
- ✓Star Fishes
- DSponges
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| Division of Labour | Animal | ||
| Column $I$ | Column $II$ | ||
| $A.$ | Organ level | $i.$ | Pheretima |
| $B.$ | Cellular aggregate level | $ii.$ | Fasciola |
| $C.$ | Tissue level | $iii.$ | Spongilla |
| $D.$ | Organ system level | $iv.$ | Obelia |