An organism’s particular role in its habitat, or how it makes its living, is called its a. carrying capacity. b. ecosystem. c. competition. d. niche.

Niche. That word describes a lot of things.
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Round it to the nearest tenth

Aregion is an area of land that has common features. these features can be natural, such as climate or landscape. they can also be artificial, such as language or religion. the xinjiang uyghur autonomous region, above, is an area of china inhabited by uyghurs, a muslim group with ethnic ties to turkish people.