ECO: It certainly isn't a new word. In Greek ("oikos"), it means the home, the place where we live. And ecology means the science of how all living creatures interact within our home - our environment on this fascinating and complex Earth.
In fact, it seems that many people think of the word “ecology” only in its biological context and as a synonym for the word "environment". While it’s true that the term "environment" generally refers to the sum of all external conditions affecting the life, development and survival of an organism, the term "ecology" examines the relationship of living things to one another and their environment, or the study of such relationships.