<prompt> Which one of the following branches of sociology studies the relationship between organism and environmentErgonomicsSocial PhysiologyEcologySocial Pathology  <response>: Ecology is defined as the science of mutual relationship between living organisms and their environments. Ergonomics is the study of people;s efficiency in their working environment Ref : Park;s Textbook of Preventive and Social Medicine; 23rd edition - Pgno 21 