All of the living and nonliving things in an environment are interconnected.
Ecology comes from the Greek word oikos meaning house or place to live.
Ecology is the study of the relationships and interactions of living things with one another and with their environment. Scientists who study these interactions are called ecologists. There is a variety of interactions among Earth's living things and their environment, ecologists divide the world into separate units known as ecosystem which consists of community, population, and habitat.