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Special structures or chemicals that allow living [[organism]]s to sense the conditions of their surroundings.<ref>Wile, Dr. Jay L. ''Exploring Creation With General Science''. Anderson: Apologia Educational Ministries, Inc.  
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'''Receptors''' are special structures or [[chemical]]s that allow living [[organism]]s to sense the conditions of their surroundings.<ref>Wile, Dr. Jay L. ''Exploring Creation With General Science''. Anderson: Apologia Educational Ministries, Inc.  
    
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2000</ref>
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[[Category:Biology]]
 
[[Category:Biology]]
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[[category:chemistry]]
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