NEET 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: -Body parts that share a common function, but not structure, are called analogous structures. Vestigial structures are inherited from ancestors, but have lost much or all of their original function. early developmental stages of many vertebrates look very similar.

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 organs are the inverse of homologous organs and are organs that perform the same functions but have different ancestors and structures. For example, the wings of butterflies and birds have a different structure and embryonic origin but perform the same function of flying.

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.