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.
Fertilization is _____________ Reptiles. | |||
| Right Option : A | |||
| View Explanation | |||
____________________ reptiles has a four-chambered heart. | |||
| Right Option : D | |||
| View Explanation | |||
Which of the following organism have three chambered heart ? | |||
| Right Option : D | |||
| View Explanation | |||
Students / Parents Reviews [20]
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Om Umang
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