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 |
Statement A: | Reptiles have a 3-chambered heart, except crocodiles which have a 2-chambered heart. |
Statement B: | Superclass Pisces shows single circulation as opposed to class Aves which shows double circulation. |
Column-I | Column-II | ||
a. | Three-chambered heart with one incompletely divided ventricle | (i) | Myxine |
b. | Jawless vertebrate with a cartilaginous vertebral column | (ii) | Chaetopleura |
c. | Soft, unsegmented body and has a structure that helps in both respiration and excretion | (iii) | Calotes |
d. | Ventral mouth, gills without operculum, and skin with placoid scales | (iv) | Scoliodon |
Column-I | Column-II | ||
A. | Vipera | (i) | Oil gland at the base of the tail |
B. | Columba | (ii) | Heterodont dentition |
C. | Scoliodon | (iii) | Crawling mode of Locomotion |
D. | Panthera | (iv) | Pelvic fins bear claspers in males |