Chapter : 4. Diversity In Living Organism
Class - Reptilia :
Class - Reptilia :
Cold-blooded, terrestrial or aquatic vertebrates with body covered with dry water-proof skin having horny scales or scute plates.
Heart 3½ chambered. Crocodyles have 4 chambered heart.
Body varies in form and is usually divided into head, neck, trunk and tail.
Limbs tetrapodous pentadacytle (five-toed) type with clawed digits (limbs are absent snakes and some lizards).
Tympanum small and depressed.
Teeth are present in all reptiles except in tortoises and turtles.
Example : Kachuga (roofed-terrapin), Testudo (land-tortoise), Uromastix (sand-lizard), Hemidactylus (wall lizard), Calotes (garden-lizard), Draco (flying-lizard) Chamaeleon, Cobra etc.
Cold-blooded, terrestrial or aquatic vertebrates with body covered with dry water-proof skin having horny scales or scute plates.
Heart 3½ chambered. Crocodyles have 4 chambered heart.
Body varies in form and is usually divided into head, neck, trunk and tail.
Limbs tetrapodous pentadacytle (five-toed) type with clawed digits (limbs are absent snakes and some lizards).
Tympanum small and depressed.
Teeth are present in all reptiles except in tortoises and turtles.
Example : Kachuga (roofed-terrapin), Testudo (land-tortoise), Uromastix (sand-lizard), Hemidactylus (wall lizard), Calotes (garden-lizard), Draco (flying-lizard) Chamaeleon, Cobra etc.
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