Define ecology.

Ecology is the branch of biology that deals with the relations of organisms to one another and to their physical surroundings. Term ecology is derived from the Greek word oikos which means house or living relations, so the study of living relations is called ecology.

It helps us understand about life, adaptation, distribution of living animals on earth, movement of material and energy, development of ecosystem etc.

Study of ecology in a deep way can help us in many ways like- conserving nature, saving a specific species, community health etc, so we can say that study of ecology is important for the survival of human being on earth.