List any eight characteristics of class Reptilia.

Reptilia:

1. The word ‘repre’ means ‘to crawl’.
2. These are creeping vertebrates.

Characteristics of class Reptilia:

1. Mostly these are terrestrial animals.
2. These are cold-blooded animals with three-chambered hearts except crocodiles that have four-chambered hearts.
3. The body is divisible into the head, neck, trunk, and tail.
4. The limbs are pentadactyle i.e., five-toed with clawed digits. Some snakes and lizards do not possess limbs.
5. The tympanum is small or depressed.
6. Most of them possess teeth except turtles and tortoises.
7. They possess scales.
8. They are oviparous and eggs are covered with a tough covering.
9. Example: - Crocodiles, snakes, lizards, turtles, tortoises, etc.