The document compares the characteristics of reptiles, amphibians, and fish. It provides information on how each group is born, how many legs or limbs they have, how they breathe, other characteristics, and examples of types of animals in each group. Reptiles are born from eggs, have 4 limbs or no limbs, breathe with lungs, and examples include crocodiles, snakes and lizards. Amphibians undergo metamorphosis from tadpoles with gills to adults with lungs, examples are frogs, toads, newts and salamanders. Fish are mostly born from eggs, have fins and a tail instead of legs, breathe through gills, and live in water, with examples like tun