NEET2013BotanyAnimal KingdomActual
The characteristics of class Reptilia are
Options
- Abody covered with moist skin which is devoid of scales, the ear is represented by a tympanum, alimentary canal
- Bfresh water animals with bony endoskeleton air-bladder to regulate buoyancy.
- Cmarine animals with cartilaginous endoskeleton, body covered with placoid scales
- Dbody covered with dry and cornified skin, scales over the body are epidermal, they do not have external cars.
Correct answer
D. body covered with dry and cornified skin, scales over the body are epidermal, they do not have external cars.
Step-by-step solution
Characteristics of class Reptilia: 1. Creeping and burrowing terrestrial animals with scales on their body, skin is dry, and rough, without any glands. 2. Cold-blooded animals; exhibit a meroblastic segmentation. 3. Few of these shed the scales on their skin as skin cast. 4. Respiration by lungs. 5. Two pairs of pentadactyl limbs, each bearing claws. Snakes are an exception. 6. Heart is 3 chambered. However, crocodiles have a 4-chambered heart. 7. Nervous system comprises of 12 pairs of cranial nerves, lateral line