| Column $I$ | Column $II$ |
| $(A)$ Limbless reptile | $(i)$ Lamprey |
| $(B)$ Jawless vertebrate | $(ii)$ Salamander |
| $(C)$ Amphibian | $(iii)$ Snake |
| $(D)$ Cartilaginous fish | $(iv)$ Shark |
| $(E)$ Flightless bird | $(v)$ Ostrich |
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| $Option$ | $Characteristics$ |
| $(a)$ | $Cyclostomata$: Sucking and circular mouth; jaws absent, integument without scales; paired appendages. |
| $(b)$ | $Aves$: Body covered with feathers; skin moist and glandular, fore-limbs form wings; lungs with air sacs. |
| $(c)$ | $Mammalia$: Mammary gland; hair on body; pinnae; two pairs of limbs. |
| $(d)$ | $Chondrichthyes$: Mouth ventral; gills without operculum; skin with placoid scales; persistent notochord. |
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