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Niche is

1. all the biological factors in the organism’s environment
2. the physical space where an organism lives
3. the functional role played by the organism where it lives
4. the range of temperature that the organism needs to live

Correct answer: the functional role played by the organism where it lives

Solution

A niche describes how an organism uses resources and interacts with other organisms and the environment. That is its functional role, not merely its habitat or a single environmental factor.

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