title: Symbiosis and evolution.
mesh_terms: D000818:Animals; D005075:Biological Evolution; D002467:Cell Nucleus; D002923:Cilia; D004247:DNA; D056890:Eukaryota; D005407:Flagella; D008854:Microscopy, Electron; D009940:Organoids; D010247:Paramecium; D012313:RNA; D013559:Symbiosis
chemical_list: D012313:RNA; D004247:DNA