| 1. | Scoliodon | 2. | Hippocampus |
| 3. | Chelone | 4. | Pteropus |
| 1. | Body covered with moist skin which is devoid of scales, the ear is represented by a tympanum, alimentary canal, urinary and reproductive tracts open into a common cloaca |
| 2. | Freshwater animals with a bony endoskeleton and air bladder to regulate buoyancy |
| 3. | Marine animals with cartilaginous endoskeletons, bodies covered with placoid scales |
| 4. | Body covered with dry and cornified skin, scales over the body are epidermal, they do not have external ears |
Given below are two statements:
| I: | Amphibians and reptiles have a 3-chambered heart with two atria and a single ventricle, and are oviparous in nature |
| II: | Crocodiles possess a 4 chambered heart with two ventricles and two atria and are viviparous in nature |
Select the most appropriate option:
1. I is correct but II is incorrect.
2. I is incorrect but II is correct.
3. Both I and II are correct.
4. Both I and II are incorrect.