How is the complexity of the organization of amphibians manifested in comparison with fish?

Amphibians are much more complex than fish, because they have paws, respiratory organs, represented by a formed pair of lungs, and salivary glands. The heart is arranged differently: there are atria, a ventricle, two circles of blood circulation.

In amphibians, the cerebellum is not developed, but the anterior lobes of the brain are very developed.



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