Before revision: Symbiosis (Ancient Greek , , " living with, companionship " , < , , "together", and , bíōsis , "living" ), , is any type of a close and long-term biological interaction, between two biological organisms of different species.
After revision: Symbiosis (Ancient Greek : living with, companionship " , < : together; and bíōsis : living ), , isp any type of a close and long-term biological interaction, between two biological organisms of different species.