title: Phosphagens and molecular evolution in worms.
mesh_terms: D000818:Animals; D000845:Annelida; D001120:Arginine / Q000031:analogs & derivatives; D005075:Biological Evolution; D007448:Invertebrates; D009132:Muscles / Q000378:metabolism*; D009943:Organophosphorus Compounds / Q000378:metabolism*; D010725:Phosphocreatine
chemical_list: D009943:Organophosphorus Compounds; D010725:Phosphocreatine; D001120:Arginine