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15. Homologous organs are body structures found in related species that look much the same because they arose from a related structure in a common ancestor.
Analagous organs are those that have a common function (may look alike or serve the same purpose) but are found in animals that are not directly related.
The wings of an eagle, bat and a grasshopper are all used for flight, but none of these animals has a common ancestor. Their wings are an example of
a) a homologous organ.
b) an analogous organ.
c) a vestigial organ.
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