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 |
1. | A-IV, B-I, C-II, D-III |
2. | A-II, B-IV, C-I, D-III |
3. | A-III, B-I, C-IV, D-II |
4. | A-III, B-IV, C-I, D-II |
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 |
(a) | (b) | (c) | (d) | |
1. | (i) | (ii) | (iii) | (iv) |
2. | (iv) | (iii) | (ii) | (i) |
3. | (ii) | (iv) | (i) | (iii) |
4. | (i) | (iii) | (ii) | (iv) |
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) |
(a) | They lack scales and paired fins. |
(b) | They have circular mouth with jaws. |
(c) | They bear 6-15 pairs of gills. |
(d) | They migrate to deep sea for spawning. |
Assertion (A) : | Birds possess moist skin. |
Reason (R) : | Birds possess oil glands throughout their body. |
1. | Both (A) and (R) are true and (R) is the correct explanation of (A). |
2. | Both (A) and (R) are true but (R) is not the correct explanation of (A). |
3. | (A) is true but (R) is false. |
4. | Both (A) and (R) are false. |