ANATOMY

Detailed explanation-1: -Structures with similar anatomy, morphology, embryology and genetics but dissimilar functions are known as homologous structures. Structures that are superficially similar but anatomical dissimilar doing the same function are known as analogous structures.

Detailed explanation-2: -Analogous structures are features of different species that are similar in function but not necessarily in structure and which do not derive from a common ancestral feature (compare to homologous structures) and which evolved in response to a similar environmental challenge.

Detailed explanation-3: -Homologous structures are structures that are similar in related organisms because they were inherited from a common ancestor. These structures may or may not have the same function in the descendants. Figure below shows the hands of several different mammals. They all have the same basic pattern of bones.

Detailed explanation-4: -For example, analogous structures are structures that are similar or resembling in certain respects, e.g. in function or in appearance but not in evolutionary origin or developmental origins, such as the wings of a butterfly and the wings of a hummingbird are analogous.

Detailed explanation-5: -To be considered analogous, the structures between the two species have to have the same function but they do not necessarily have the same anatomical features.