Amphibians have gills when they are young or they breathe through their skin. Adult amphibians either have lungs or continue to breathe through their skin.Amphibians have three ways of breathing. The first is with gills, seen on tadpoles and salamanders that do not leave the water. The second isâ¦.
Homology involves the theory that macroevolutionary relationships can be proven by the similarity in the anatomy and physiology of different animals. Since Darwin, homology has been cited in textbooks as a major proof for evolution. A review of the literature on homology indicates that the theory does not provide evidence for evolutionary naturalism, and that the common examples of homology can be better explained by Creation.
Homologous structures are parts of the body that are similar in structure to other species' comparative parts. Scientists say these similarities are evidence that life on earth share a common ancient ancestor from which many or all other species have evolved over time. Evidence of this common ancestry can be seen in the structure and development of these homologous structures, even if their function is different. Examples. The more closely organisms are related, the more similar the homologous structures between organisms. Many mammals, for example, have similar limb structures.