Class Reptilia
Class Reptilia
Reptiles are terrestrial vertebrates with a dry, scaly, impermeable skin covered by scales. Their characteristics are :
They have limbs which are absent in snakes and some lizards.
They respire through lungs.
The heart has two auricles and a ventricle which is partly divided.
They are cold-blooded (poikilotherms) , i.e., their body temperature varies according to that of the surroundings. (Fish and amphibians too are cold-blooded.)
Fertilization is internal. The fertilized eggs are laid with a shell and the young reptile hatches out of the egg.
Example: Turtles, house lizards (Hemidactylus), snakes and crocodiles are reptiles. In crocodiles, the heart is four-chambered. Others have two auricles and incompletely divided ventricles.
Draco is a genus of agamid lizards that are also known as flying lizards, flying dragons or gliding lizards.
Members of which of the following division are vertebrates ? | |||
| Right Option : D | |||
| View Explanation | |||
Identify the feature which is common between birds and crocodiles. | |||
| Right Option : A | |||
| View Explanation | |||
Hemidactyles is the scientific name of _____________________ . | |||
| Right Option : A | |||
| View Explanation | |||
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