AP BIOLOGY

Detailed explanation-1: -Analogous organs are those organs that have some superficial resemblance, perform similar functions and yet, have different evolutionary origins and hence, different anatomical structures. Homologous organs are organs which have similar functions but different origins.

Detailed explanation-2: -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. Because analogous structures differ in anatomy as well as developmental origin they do not implicate a common ancestral origin.

Detailed explanation-3: -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-4: -Analogous Structure is related to Convergent Evolution.

Detailed explanation-5: -Homologous structures share a similar embryonic origin; analogous organs have a similar function. For example, the bones in the front flipper of a whale are homologous to the bones in the human arm. These structures are not analogous. The wings of a butterfly and the wings of a bird are analogous but not homologous.