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
the presence of cloaca, oviparous and external fertilisation
D
skin is moist
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The correct Answer Is:The Skin is Moist
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