What is ecosystem?

Group of interacting species at one place. Group of interbreeding organisms only. Functional unit of nature, where living organisms interact among themselves and also with the surrounding physical environment. Group of living organisms and there interaction between them.

Functional unit of nature, where living organisms interact among themselves and also with the surrounding physical environment.

Functional unit of nature, where living organisms interact among themselves and also with the surrounding physical environment. Ecosystem varies greatly in size from a small pond to a large forest or a sea.