The characteristics of Amphibia and Aves respectively are

Cold-blooded, warm-blooded

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Do not have scales or hair on their skin, have feathers

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Both A and B

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None of these

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Solution

The correct option is B Both A and B
Amphibia are cold-blooded or exothermic animals, skin is smooth, thin, hairless, porous, and rarely scaled. The skin contains both mucous glands and poison glands, three-chambered heart consisting of two atria and one ventricle.
Aves are warm-blooded with an exoskeleton of feathers. They do not contain sweat glands. Lightweight bones called pneumatic bones are present in them.
Thus the correct answer is option C.

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Similar questions

	Amphibia		Pisces
1	They do not have scales on their body	1	They have scales on their body
2	Heart is 3 chambered	2	Heart is 2 chambered
3	They are oviparous	3	They are viviparous
4	They can live only on land	4	They can live only in water

Birds and mammals share one of the following characteristics as a common feature.

(a) Pigmented skin

(b) Pneumatic bones

(d) Warm blooded body

Which of the following class of animals have hair on their skin?

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