Amphibians do not have the following:

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(C) Amphibians possess a three-chambered heart consisting of two atria and one ventricle.They respire through lungs in their adult stage and through g

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Scales

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(C) Amphibians possess a three-chambered heart consisting of two atria and one ventricle.They respire through lungs in their adult stage and through gills during their larval (tadpole) stage.Their skin is moist and contains mucus glands to prevent desiccation.Unlike reptiles,amphibians lack scales on their skin,which is why they are often referred to as having 'naked' skin.

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