can you mention one characteristic of this last one?
They are ectothermic, tetrapod vertebrates of the class Amphibia
Amphibian
Amphibians are ectothermic, tetrapod vertebrates of the class Amphibia
what is referred to as oort cloud? A theoretical cloud of predominantly icy planetesimals proposed to surround the Sun at distances ranging from 2,000 to 200,000 au from where did it originate? It is thought to have developed after the formation of planets from the primordial protoplanetary disc. what is it composed of? It consists of ices such as water, methane, ethane, carbon monoxide and hydrogen cyanide. what are the various states of the first one? solid phase, liquid phase, and the gaseous phase what kind of life form does it support? Nearly all fish, marine mammals, amphibians
wiki:1608190
Amphibian [SEP] Introduction
Amphibians are ectothermic, tetrapod vertebrates of the class Amphibia. All living amphibians belong to the group Lissamphibia. They inhabit a wide variety of habitats, with most species living within terrestrial, fossorial, arboreal or freshwater aquatic ecosystems. Thus amphibians typically start out as larvae living in water, but some species have developed behavioural adaptations to bypass this. The young generally undergo metamorphosis from larva with gills to an adult air-breathing form with lungs. Amphibians use their skin as a secondary respiratory surface and some small terrestrial salamanders and frogs lack lungs and rely entirely on their skin. They are superficially similar to lizards but, along with mammals and birds, reptiles are amniotes and do not require water bodies in which to breed.