Amphibians AMPHIBIAN=GREEK FOR AMPHIBIOS WHICH MEANS DOUBLE LIFE ECTOTHERMIC VERTEBRATES HIBERNATE OR ESTIVATE DEPENDING ON CLIMATE.
Class Aves: Birds. Evolved from small, carnivorous dinosaurs about 150 million years ago. Oldest known bird fossils belong to the species named Archaeopteryx.
Amphibians
Amphibians The double life. Origin and Evolution of Amphibians Lobe – finned fish – Bone structure within their fins allowed for them to function as “legs”
Mammals Chapter 32 Kingdom Animalia ---Phylum Chordata ------Subphylum Vertebrata ---------Class Mammalia.
Biology 11 A.MacAskill. All cells require a constant supply of: Oxygen Nutrients All cells need to get rid of waste products: Carbon Dioxide.
Phylum Chordate Subphylum Vertebrata
Characteristics of Amphibians
