Final answer:
An organism's niche encompasses its habitat, feeding relationships, and interactions with other species in its ecosystem.
Step-by-step explanation:
An organism's niche refers to the role it plays in its ecosystem, including its habitat, feeding relationships, and interactions with other species. The habitat is the physical environment in which a species lives and to which it is adapted. It is determined by abiotic factors like temperature and rainfall. The niche also includes the specific food the organism eats and how it obtains that food.