What term describes an organism's specific role in an ecosystem?

The term that describes an organism's specific role in an ecosystem is "niche." A niche encompasses various aspects of an organism's life, including how it obtains its resources, its interactions with other organisms, and how it contributes to the energy flow and nutrient cycling in its ecosystem. It reflects the unique position that each species occupies in the ecological community and how it fits within the larger ecological framework.

In contrast, a habitat refers to the physical environment where an organism lives, providing it with the necessary conditions for survival. A biome is a larger ecological classification that includes various ecosystems with similar climate conditions, flora, and fauna. A community consists of all the different populations of species that live and interact in a specific area. Understanding the concept of a niche is crucial for studying the dynamics of ecosystems and the relationships between different organisms within them.