There are three groups:
* Frogs and toads (Anura)
* Salamanders and Newts (Caudata)
* Caecilians (Gymnophiona)
Amphibians
Yes, all frogs are classified as amphibians
No, dinosaurs were not amphibians. Dinosaurs are classified as reptiles.
Organisms are classified based on a number of different criteria. Animals that have hair, are warm-blooded, and give birth to live young are mammals. Those animals that are cold-blooded and lay eggs are amphibians or reptiles. Animals are also classified based on whether or not they have a backbone (vertebrates) or not. (invertebrates.)
About how many organisms have been classified to date?
Linnaeus classified organisms based on their morphological similarity.
Because they are the larval stage of amphibians, and are not fish.
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crustaceans/amphibians
Organisms are classified by Kingdom, Phylum, Class, Order, Family, Genus, Species, and Sub-species.
It is referred as a Taxon.Taxon- groups or level of organization in which organisms are classified.
There are one-celled organisms classified in the plant kingdom. The popular ones are protists which are classified as animals as well as plants.