Homologous And Analogous Structures
The homologous structure developed due to the adaptation to the different environment while the analogous structure developed to the adaptation to the similar environment of different species. Homologous structures are those that are similar in multiple species and show that the organisms descended from a common ancestor.
However having the same ancestry does not mean that a bodily structure will always have the same function.
Homologous and analogous structures. Homologous structures on the other hand are characteristics which are shared by related species because they have been inherited in some way from a common ancestor for example the bones on the front fins of a whale are homologous to the bones in a human arm and both are homologous to the bones in a chimpanzee arm. Homologous structure arises from the divergent evolution and analogous structure arises from the convergent evolution. This leads to the development of superficially similar structures to lead a similar way of life.
Homologous and analogous structures are derived from molecular changes to conclude anatomical structures in animals or plants frequently diverge in function due to dna mutations or epigenetic regulation resulting in homologous structures in future offspring if the change is favorable for the survival of that organism. Homologous structures are structures that may look or function differently from related organisms. Analogous structures are considered as a result of convergent evolution.
Analogous structure the homologous structures of a different organism are similar to each other on their anatomy morphology embryology. Homologous structures can be anything from a specific skeletal structure to the nervous system to a body plan. Sometimes animals belonging to different group live in the same habitat.
Learn vocabulary terms and more with flashcards games and other study tools. The similarity of the body structure of different organisms on the basis of their common ancestry is called homologous. The relationship between homologous structures is called homology.
The anatomy of the homologous structures is similar while the anatomy of the analogous structures is dissimilar. This is the difference between homologous and analogous structures. While both of these categories have to do with how similar body parts of different organisms are used and structured only one is actually an indication of a common ancestor somewhere in the past.
Hence they lead a similar type of life. Analogous structures are structures that look and function similarly from unrelated organisms. Homologous structures are considered as evidence of evolution.
As these animals belong to different groups anatomically the structures are different. Here s the difference between homologous and analogous structures. Start studying homologous and analogous structures.
Two different ways these similarities in anatomical structures can be classified is as either analogous structuresor homologous structures.
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