These are organs that can also be used in other species such as dogs, cats, etc. As in transplants.
http://www.blurtit.com/q7695106.html
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Definition of homologous organs in the Medical Dictionary. homologous organs explanation. Information about homologous organs in Free online English dictionary. What is homologous organs? Meaning of homologous organs medical term. ... homologous organs; Homologous pair; Homologous Penetrating Central Limbo...
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medical-dictionary.thefreedictionary.com/homologous+org...
medical-dictionary.thefreedictionary.com/homologous+organs
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Such seemingly functionless parts are called vestigial organs or structures. Vestigial organs are often homologous to organs that are useful in other species. The vestigial tailbone in humans is homologous to the functional tail of other primates.
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bioweb.cs.earlham.edu/9-12/evolution/HTML/live.html
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www.usu.edu/openshaw/3110/3110ppt/genderevolution/sld02...
www.usu.edu/openshaw/3110/3110ppt/genderevolution/sld029.htm
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J. W. v. GOETHE discovered as soon as 1790 that plants consist of a number of homologous organs and that a progressive transformation that he called metamorphosis occurs in the course of their development beginning with their leaves and ending with parts of the flower.
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www.biologie.uni-hamburg.de/b-online/e28/28c.htm
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Science Central - 462238 - Highlights of the major pieces of evidence, including living organisms, common ancestry, homologous structures, vestigial organs, biochemistry. ... Highlights of the major pieces of evidence, including living organisms, common ancestry, homologous structures, vestigial organs, biochemistry.
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www.sciencecentral.com/site/462238
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An internet resource developed by; Christopher D. Green; York University, Toronto, Ontario; ISSN 1492-3173 ... The production by some organisms, under the stimulus of external forces, of organs or parts where such do not occur normally.
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psychclassics.yorku.ca/Baldwin/Dictionary/defs/H3defs.h...
psychclassics.yorku.ca/Baldwin/Dictionary/defs/H3defs.htm
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Homologous Organs - Organs of different animals which have the same fundamental structure and / or develop from corresponding parts of the embryos. The arm of a man is clearly homologous with the wing of a bird or the flipper of a whale, or even the fin of a ling fish.
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www.studentsguide.in/zoology-dictionary/histology-hyrac...
www.studentsguide.in/zoology-dictionary/histology-hyracoidea.html
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The appendix is a vestigial organ because it does not serve a function like the homologous organs in other animals even if it might serve a function in humans. So, the question becomes, why do humans have an appendix?
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atheism.about.com/library/FAQs/evolution/blfaq_evolutio...
atheism.about.com/library/FAQs/evolution/blfaq_evolution_evidence08.htm
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