title: The evolution of metals as essential elements (with special reference to iron and copper).
mesh_terms: D000220:Adaptation, Biological; D000429:Alcohol Oxidoreductases; D000818:Animals; D001665:Binding Sites; D005075:Biological Evolution; D002374:Catalase; D002384:Catalysis; D003067:Coenzymes; D003238:Connective Tissue / Q000096:biosynthesis; D003300:Copper; D003580:Cytochromes; D004579:Electron Transport; D005288:Ferredoxins; D006418:Heme; D006420:Hemeproteins; D006433:Hemocyanins; D006454:Hemoglobins; D006801:Humans; D007501:Iron / Q000378:metabolism; D008667:Metalloproteins; D008670:Metals; D010100:Oxygen; D010544:Peroxidases; D010788:Photosynthesis; D011485:Protein Binding; D013482:Superoxide Dismutase
chemical_list: D003067:Coenzymes; D003580:Cytochromes; D005288:Ferredoxins; D006420:Hemeproteins; D006454:Hemoglobins; D008667:Metalloproteins; D008670:Metals; D006418:Heme; D003300:Copper; D006433:Hemocyanins; D007501:Iron; D000429:Alcohol Oxidoreductases; D010544:Peroxidases; D002374:Catalase; D013482:Superoxide Dismutase; D010100:Oxygen