Define Ecosystem. Briefly describe the two types of ecosystem.

Explanation

Ecosystem is the structural and functional unit of biosphere, comprising of all the interacting organisms in an area together with the non-living constituents of the environment.
Ecosystem are of two types :
(i) Natural Ecosystem : The natural ecosystems are terrestrial (land) as well as aquatic. The common example of land ecosystem are forest, grassland, desert, etc. The common examples of aquatic ecosystem are ponds, lakes, rivers, ocean, etc.
(ii) Human made or Artificial Ecosystem: These ecosystems are made by human beings. The common examples are crop fields, gardens, parks, aquarium, etc.