- Homology and homologous organs Homology is the similarity between organs of different animals based on common ancestry or common embryonic origin and built on the same fundamental pattern, but perform varied functions and have different appeappeara
3. Richard Owen (1804-1892) introduced the term Some examples are given below
4.. Homology in limb structure of vertebrates homologous.
5. The flipper of a seal, wing of a bat, forelimb of a mole, front leg of horse and the arm of a man look very different, perform different functions, but exhibit the same structural plan in bone pattern.
6.They have similar anatomical structure. All of them have humerus, radius, ulna, carpals, metacarpals and phalanges in their forelimbs. Hence, in these animals,
the same structure developed along dlifferent directions due to adaptations to different needs This is known as adaptive radiation which represents
evolution of new forms in several directions from the common ancestral type.
