The general characteristics of reptile are as follows:
1. Habitat :
They are mostly terrestrial and some are aquatic. They are cold blooded
(poikilothermic) animal.
2. Body form : Their body is elongated and cylindrical and divided into head
,trunk , neck and tail. Skin is dry , rough and non-glandular. It is covered by
scales or bone plates.
3. Locomotion: Locomotion in amphibian is carried out by two pair of
pentadactyle limbs. Horny claws are present aquatic form, digits in terrestrial
form.
4. Respiration
: They respire through
lungs. In turtle, gaseous exchange take place through cloaca.
5. Nervous System : They have 12 pair of carnial nerve arising from brain.
6. Reproduction : Sexes are separate and they are oviparous. Eggs are covered by
CaCO3.
Eg : Hemidactylus (wall
lizard) , turtle etc
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