List I | List II |
A. Class Aves | I. Presence of air bladder |
B. Class Chondrichthyes | II. Circular and sucking mouth |
C. Class Osteichthyes | III. Air cavities in bones |
D. Class Cyclostomata | IV. Absence of operculum |
Column-I | Column-II | ||
(a) | Exocoetus | (i) | Tympanum represents the ear |
(b) | Trygon | (ii) | Marine bony fish |
(c) | Salamandra | (iii) | Air sacs connected to lungs |
(d) | Aptenodytes | (iv) | Cartilaginous marine fish |
Column -I | Column-II | ||
A. | Protochordates | (i) | Homoiothermous |
B. | Aves | (ii) | Circular mouth without jaws |
C. | Agnatha | (iii) | Exclusively marine |
D. | Pisces | (iv) | Streamlined body and bear fins |
A | B | C | D | |
1. | (i) | (ii) | (iv) | (iii) |
2. | (iii) | (i) | (ii) | (iv) |
3. | (iv) | (i) | (iii) | (ii) |
4. | (iv) | (iii) | (ii) | (i) |