Which term describes the full range of conditions where an organism lives and how it utilizes those conditions?

The term that describes the full range of conditions where an organism lives and how it utilizes those conditions is "niche." A niche encompasses not only the physical space that an organism occupies but also its role in the ecosystem, including how it obtains food, interacts with other organisms, and responds to environmental changes.

In ecological terms, a niche includes factors such as the organism's habitat, its activities, and its relationships with biotic (living) and abiotic (non-living) components of the environment. This concept highlights the unique position of a species within an ecosystem and emphasizes that two species can occupy the same habitat but have different niches, allowing them to coexist.

Other terms provided in the options, such as habitat and community, refer to different concepts. A habitat is the specific environment in which an organism lives, while a community refers to all the different species living and interacting in a particular area. A biome is a larger regional classification that groups ecosystems based on climate, vegetation, and other environmental factors. Understanding the niche concept is fundamental for studying species' adaptations and interactions within their ecosystems.