How many species are present in class Amphibia? Make a list of its members. What may be the
reason that they are partially successful although they can also live also on land?
The class Amphibia includes about 6771 species. It include animals like frogs, toads, salamanders and caecilians. They were the first group of vertebrates that have ventured to live on land from water. They were partially successful as the adults have to come back to water for reproduction.