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analogy |
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analogy, in biology, the similarities in function, but differences in evolutionary origin, of body structures in different organisms. For example, the wing of a bird is analogous to the wing of an insect, since both are used for flight. However, there is no common ancestral origin in the evolution of these structures: While the wings of birds are modified skeletal forelimbs, insect wings are extensions of the body wall. Although insects and birds do have a very remote common ancestry (more than 600 million years ago), the wings of the two groups evolved after their ancestries had separated. See also homology homology (hōmŏl`əjē) ..... Click the link for more information. . analogy 1. Biology the relationship between analogous organs or parts 2. Logic maths a form of reasoning in which a similarity between two or more things is inferred from a known similarity between them in other respects How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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| The accursed shark alone can in any generic respect be said to bear comparative analogy to him. It is all plain and simple, and in strict accordance with Analogy -- only, by the way, you must not speak of the result as being a Figure, but as a Solid. Analogy or proportion is when the second term is to the first as the fourth to the third. |
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