bacteria can help digest food in humans
digestive_system has mouth_and_salivary_glands salmon is good_food_for_humans. bacteria is bacteria. liver has produces_bile_to_help_digest_food yogurt has bacteria_in every_living_human_being has digestive_system digestive_system has do_with_food digesting is involuntary_bodily_function. bacteria is microorganism. legionella is bacteria.