LIFE SCIENCE

Detailed explanation-1: -In evolutionary biology, analogous structures are defined as biological structures having similar or corresponding functions but not from the same evolutionary origin. In other words, species use these biological structures for the same purpose and yet these species are from unrelated evolutionary lines.

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: -Organs with dissimilar structures, performing similar functions are called analogous organs.

Detailed explanation-4: -Similar traits can be either homologous or analogous. 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.

Detailed explanation-5: -Alternatively, many structures that are clearly similar have entirely different evolutionary ancestors. These have converged to have the same or comparable function despite differing origins and are known as analogous or homoplastic structures.