title: Life's beginnings--origin or evolution?
mesh_terms: D001669:Biochemical Phenomena; D001671:Biochemistry; D005075:Biological Evolution; D005796:Genes; D005843:Geography; D046911:Macromolecular Substances; D008954:Models, Biological; D008956:Models, Chemical; D008967:Molecular Biology; D000069497:Origin of Life
chemical_list: D046911:Macromolecular Substances