How does homology relate to the theory of evolution?

Last updated: 7/27/2022

How does homology relate to the theory of evolution? Homology refers to traits that are structurally similar in different organisms, like bat wings and human arms, because they each were inherited from a shared common ancestor with those traits; the theory of evolution provides a mechanism for those observations. Homology refers to traits that have converged on a shared form; the theory of evolution provides a mechanism for those observations. Homology refers to traits that only superficially look alike, like bat wings and human arms; the theory of evolution cannot explain these similarities. Homology refers to traits that look alike but have entirely different origins, like the fins of dolphins and of fish; the theory of evolution cannot explain the origins.