To solve this problem, we need to understand the concept of a niche in ecology. Let's analyze each option:$\newline \bullet$Option 1: The range of temperature that the organism needs to live.$\newline$ - This describes a specific abiotic factor that affects an organism's survival, but it does not encompass the full concept of a niche.$\newline \bullet$Option 2: The physical space where an organism lives.$\newline$ - This refers to the habitat of the organism, which is a part of its niche but not the complete definition.$\newline \bullet$Option 3: All the biological factors in the organism’s environment.$\newline$ - This describes the biotic components of the environment, which are part of the niche but do not define it entirely.$\newline \bullet$Option 4: The functional role played by the organism where it lives.$\newline$ - This option correctly describes the niche, which includes the role an organism plays in its ecosystem, including its interactions with both biotic and abiotic factors.$\newline$Therefore, the correct option is Option 4, as it accurately defines the niche as the functional role of an organism in its environment.