What are Amphibians

Amphibians – Characteristic Features
With the nostrils and mouth closed, the floor of the oral cavity is then pushed up, which forces air down the trachea into the lungs. Anatomy of the lower respiratory tract. Most of them undergo metamorphosis, wherein they transform from a gilled larva into an adult that breathes air with lungs. In other projects Wikimedia Commons. Similarly, crocodiles are known to guard their young after the eggs hatch. Selon Amphibian Species of the World 17 septembre [ ]:. Ils interceptent des femelles qui se dirigent vers des mâles coassant ou prennent un territoire lorsqu'il devient vacant.

What is a Mammal?

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