give reason :- though tortoise lives on land as well as in water , it cannot be included in class - amphibia ........please answer fast.......it's really urgent friends..
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Tortoise though live in both water and land like amphibia but does not show any other amphibian characters...
Like tortoise has dry skin while amphibian have moist skin
Tortoise have body covered with scales but amphibian have no scales on their body
Tortoise have incomplete 4 chambered heart while amphibians have 3 chambered heart.
Tortoise breath only by lungs while amphibians have gills to (at least in their larval stage)
Due to all such characters makes tortoise a reptile not amphibian.
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