Which features are common to the animals belonging to class-Amphibia and class-Reptilia?

Question

Which features are common to the animals belonging to class-Amphibia and class-Reptilia? (A) The presence of scales with internal fertilisation and usually four-chambered heart (B) The presence of tympanum, poikilotherms and usually three-chambered heart (C) The presence of cloaca, oviparous and external fertilisation (D) Skin is moist

Tardigrade Admin · Accepted Answer

Option (b) is correct as
Class-Amphibia and class-Reptilia share the following features.
The presence of tympanum is seen in both classes, which represents the ear.
Animals of both classes are cold-blooded or poikilotherms and usually have a three-chambered heart (except crocodile).

Q. Which features are common to the animals belonging to class-Amphibia and class-Reptilia?

The presence of scales with internal fertilisation and usually four-chambered heart

The presence of tympanum, poikilotherms and usually three-chambered heart

The presence of cloaca, oviparous and external fertilisation

Skin is moist

Option (b) is correct as Class-Amphibia and class-Reptilia share the following features. The presence of tympanum is seen in both classes, which represents the ear. Animals of both classes are cold-blooded or poikilotherms and usually have a three-chambered heart (except crocodile).

Option (b) is correct as
Class-Amphibia and class-Reptilia share the following features.
The presence of tympanum is seen in both classes, which represents the ear.
Animals of both classes are cold-blooded or poikilotherms and usually have a three-chambered heart (except crocodile).