I. Body is covered by dry and cornified skin, epidermal scales.
II. They have no external ear
III. Crawling habit
IV. 3 chambered heart
The above characters are associated with:

Reptile

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Bird

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Amphibia

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Mammal

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Solution

The correct option is A Reptile
Reptiles have dry skin that is cornified and shows the presence of epidermal scales that are shed off at regular intervals.
Reptiles have no external ears.
Some of the reptiles show crawling habits.
Most of them have a three-chambered heart with two atria and one ventricle.
Hence, the correct answer is A.

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Similar questions

The characters given below are associated with - .

i). Body covered by dry and cornified skin, epidermal scales or scutes.

ii). No external ears.

iii). Crawling or creeping habit.

iv). 3-chambered Heart.

v). Eggs with yolk.

Body is covered with dry and cornified skin and epidermal scales in:

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