Ecology is the branch of biology dealing with the relations and interactions between organisms and their environment.
‘Ecology is defined as the scientific study of the relationship of living organisms with each other and with their environment.’
It has been derived from two Greek words, ‘Oikos’, meaning home or estate, and ‘logos’ meaning study .
The living community of plants and animals in any area together with the nonliving components of the environment such as soil, air, and water-constitute the ecosystem.
The study of the ecosystem is called ecology
Ecology not only deals with the study of the relationship of individual organisms with their environment, but also with the study of populations, communities, ecosystems, biomes, and biosphere as a whole.