different between amphibia and aves
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a.amphibia.
Amphibians are cold-blooded animals. Amphibians can live both on land and in water. They are the first vertebrates to have four limbs, each with five digits and are called tetrapods. Respiration is by skin and lungs. They possess a three-chambered heart. Amphibians reproduce by laying eggs...
b.aves..
Aves are warm-blooded animals bearing three clawless digits. Fore-limbs are modified into wings which aid in flight. Their hind limbs are strong and are developed for walking. Bones are hollow. Body is covered by feathers. Respiration is through lungs. They have four-chambered heart. They lay eggs which hatch into chicks.....
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