Question

Read the following statements and identify the one which best describes an ecosystem.

• A. It is a system consisting of only biotic components that function together as a unit
• B. It is a functional unit of nature, where living organisms interact among themselves and also with their physical environment
• C. It is a geographic area where plants, animals, and other organisms interact with each other only
• D. It is a complex of living organisms in their physical environment without any interactions

Answer 1

The correct option is B It is a functional unit of nature, where living organisms interact among themselves and also with their physical environment

An ecosystem is a functional unit of nature, where living organisms (plants, animals and other organisms) interact among themselves and also with their surrounding physical environment. Examples include forest ecosystems, pond ecosystems etc. Hence, option b is correct.

An ecosystem consists of two components: abiotic components (climatic, edaphic and topographic factors) and biotic components (producers, consumers and decomposers) as its interacting units. Hence, option a is incorrect as the ecosystem has both abiotic and biotic components.

Ecosystem is a geographical area where plants, animals and other organisms work together along with their physical environment to sustain life. So, option c is incorrect.

Ecosystem is the complex of living organisms, their physical environment, and all their interactions in a particular area. Hence option d is incorrect.