Highlight the features of a higher organization of amphibians.

Amphibians belong to the class of vertebrates and are divided into three orders: tailed, legless and tailless. Distinguish between terrestrial and aquatic amphibians. Terrestrial ones only breed in water, all the rest of the time they spend on land. Aquatic animals spend their entire life in water. The following features indicate a high organization of amphibians: the presence of lungs, the appearance of limbs, a more complex structure of the nervous system, the absence of scales, the appearance of the eyelids, the development of the ears (the appearance of the middle ear).

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