regulation is when an organism maintains a stable internal environment
homeostasis is biological_regulation_process. organism is system. find_inside is more_controlled_environment. ecology is environment. positive_regulation_of_ossifyion is regulation_of_biological_process. homeostatic_regulatory_system is organism_part. nonvascular_organism is organism. timing is regulation. negative_regulation_of_ossifyion is regulation_of_biological_process. stable is illness.