Multiple choice

Which of the following does not characterise an ecosystem?

  1. During stress conditions, the count of rare species gets reduced in an ecosystem.

  2. An ecosystem is considered to be unstable if its structure and functions remain more or less the same throughout the year.

  3. An ecosystem having high population diversity and low dominance is regarded as less productive in nature.

  4. In ecosystems, the biotic communities generally accomodate large number of individual species occurring in small numbers.
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B Correct answer
Explanation

It is just the reverse statement as an ecosystem is considered to be stable in the ecological sense if its structure and functions remain more or less the same throughout the year.

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