Traits of Adaptation to Aquatic Amphibians?

The main features. Which testify to the adaptation of amphibians to life on land are the following factors:
1. Eyelids appeared in the process of evolution.
2. They are able to breathe with their lungs. Although there are some representatives. That breathe through the skin.
3. Acquired nostrils.
4. The process of hydration is due to the skin glands.
Adaptation to life in the aquatic environment:
1. A streamlined body that allows you to move quickly under water.
2. Smooth skin, often covered in mucus.
3. Also, in the process of evolution, membranes appeared between the fingers. Thus, providing the ability to swim quickly and comfortably.

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