Final answer:
Living amphibians belong to the phylum Chordata and class Amphibia, but they have both similarities and differences in their characteristics.
Step-by-step explanation:
The examples you provided are related to the animal kingdom, specifically the phylum and class classification. When identifying the animal phylum to which an example or characteristic belongs, we look for common features and characteristics among the organisms. For instance, living amphibians belong to the phylum Chordata and class Amphibia. They share certain similarities, such as having moist skin and undergoing metamorphosis, but they also have differences in their habitat, reproductive strategies, and anatomical features.