Prove that the mucus covering the frog’s body is an adaptation to both aquatic and terrestrial lifestyles.

The body of frogs is abundantly covered with mucus. This factor is useful both in the aquatic environment and on land. In the aquatic environment, mucus gives the frog additional streamlining, which reduces the resistance of the aquatic environment when the animal moves. On land, this substance protects the frog’s skin from drying out, which is the most important factor for its life. As you know, amphibians, and the frog belongs to them, have skin respiration, but with dry skin this process is simply impossible. Therefore, frogs prefer not to be exposed to prolonged exposure to sunlight.