The interdependence among living organisms and the environment creates a balanced ecosystem. A balanced ecosystem is one which does not appear change very much over a period of time. It also provides living organisms with all their daily needs such as food. nutrients, gases, water, shelter and mates.
slight changes in the number of one species will offset the number of other species. The ecosystem would take time to become balanced again. In order to maintain a balanced ecosystem, the following factors need to be maintained:
(a) The number of individuals in the different populations
(b) The number of populations in the different communities
(c) The composition of gases in the air and the quality
(d) The availability of water, soil and nutrients