| Column I | Column II | Column III | |
| (1) | Petromyzon | Ectoparasite | Cyclostomata |
| (2) | Ichthyophis | Terrestrial | Reptilia |
| (3) | Limulus | Body covered by chitinous exoskeleton | Pisces |
| (4) | Adamsia | Radially symmetrical | Porifera |
| Pair of skeletal parts | Category | |
|---|---|---|
| (a)$\,\,$ | Sternum and ribs$\,\,$ | Axial skeleton |
| (b)$\,\,$ | Clavicle and glenoid cavity$\,\,$ | Pelvic girdle |
| (c)$\,\,$ | Flumerus and ulna$\,\,$ | Appendicular skeleton |
| (d)$\,\,$ | Malleus and stapes$\,\,$ | Ear ossicles |