Amphibians – Characteristic Features

Basic types of respiratory structures

RESPIRATION
Frogs, for instance, have balloon-like lungs that do not have a very large surface area. Twenty-First Century Books, The diapsid species excrete uric acid as the principal nitrogenous waste product. Saturated water vapor pressure is dependent only on temperature. Diverses causes sont identifiées ou considérées comme possibles, comme l'augmentation de la radiation ultraviolette qui pourrait affecter la ponte à la surface des mares, la contamination de l'eau par des pesticides et des engrais et la présence de parasites comme le trématode Ribeiroia ondatrae. The hearts of amphibians have three chambers, two atria and one ventricle.

What are Amphibians

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Size range and diversity of structure