Answer: Comparative Anatomy
Explanation: Comparative anatomy is basically used to determine evolutionary relationship between organisms.
This entails comparing the structural relationship and similarities between organisms to determine their revolutionary relationship.
organisms thst have anatomical structures that are very similar in embryological development and form, but very different in function are called homologous structures. These structures are always so similar, it can be used to point out an evolutionary relationship and in most cases common ancestor of the species that possess them. One of such homologous structures is the forelimb of mammals.
