the human eye and the eye of the octopus. When similar characteristics occur because of environmental constraints and not due to a close evolutionary relationship, it is an analogy or homoplasy. In many cases analogous structures, or analogues, tend to become similar in appearance by a process termed convergence. analogous structure: a structure that compared with another has the same function but a different origin; analogous structures are e.g. Similar or alike in … These are analogous structures (Figure 2). Bird and bat wings are analogous — that is, they have separate evolutionary origins, but are superficially similar because they have both experienced natural selection that shaped them to play a key role in flight. For instance whales, birds and humans all possess the same arm bone structure. Analogy (from Greek ἀναλογία, analogia, "proportion", from ana-"upon, according to" [also "against", "anew"] + logos "ratio" [also "word, speech, reckoning"]) is a cognitive process of transferring information or meaning from a particular subject (the analog, or source) to another (the target), or a linguistic expression corresponding to such a process. The structures in this case are known as analogous structures. Find another word for analogous. Some biological characteristics are analogous (also called "convergent"), which means that they serve the same function in different species but they evolved independently rather than from the same embryological material or from the same structures in a common ancestor. Analogous: having qualities in common. https://www.biologyonline.com/dictionary/analogous-structures Define analogous. Analogous / Convergent Structures . 16 synonyms of analogous from the Merriam-Webster Thesaurus, plus 43 related words, definitions, and antonyms. Analogy between structures does not imply evolutionary relationships but may imply CONVERGENCE . An example is the convergence of the streamlined form in the bodies of squid, shark, seal, porpoise, penguin, and ichthyosaur, animals of diverse ancestry. For example, insects use wings to fly like bats and birds, but the wing structure and embryonic origin is completely different. An example of an analogous structure would be the wings on butterflies, bats, and … See more. 1. Homologous Structures. Homologous structures are similar in two organisms which have the same ancestors but the functions performed may or may not be the same. Analogous structure emerges from convergent evolution. Analogous definition, having analogy; corresponding in some particular: A brain and a computer are analogous. Analogies are the result of convergent evolution.. Interestingly, though bird and bat wings are analogous as wings, as forelimbs they are homologous. analogous synonyms, analogous pronunciation, analogous translation, English dictionary definition of analogous. adj.

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