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Ecosystem and its Components - Practice Questions & MCQ

Edited By admin | Updated on Sep 18, 2023 18:34 AM | #NEET

Quick Facts

  • 17 Questions around this concept.

Solve by difficulty

Vertical distribution of different species occupying different levels in a biotic community is known as:

Most animals are tree dwellers in a:

Which one of the following is one of the characteristics of a biological cummunity?

Concepts Covered - 1

  • An ecosystem can be visualised as a functional unit of nature, where living organisms interact among themselves and also with the surrounding physical environment.
  • The term ecosystem was proposed by A.C. Tansley in 1935 where eco implies the environment and system denotes an interacting, interdependent, integrated complex.
  • Ecosystems vary greatly in size from a small pond to a large forest or a sea. 
  • The entire biosphere is sometimes regarded as a global ecosystem, but  is too big and complex to be studied at one time.
  • Hence, it is convenient to divide it into two basic categories, namely:
    • Terrestrial:  Forest, grassland and desert are some examples of terrestrial ecosystems.
    • Aquatic: pond, lake, wetland, river and estuary are some examples of aquatic ecosystems.  
  • Man Made ecosystems:
    • These are the artificial ecosystems which rely on the human efforts to sustain.
    • They do not possess a self regulating mechanism. 
    • They have almost no diversity and have simple food webs. 
    • Crop fields and an aquarium can be considered as man-made ecosystems.

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