What type of ecosystem features interactions between both biotic and abiotic factors?

An ecosystem is defined as a community of living organisms (biotic factors) interacting with their physical environment (abiotic factors). This interaction includes the relationships among plants, animals, fungi, microorganisms, and the non-living components like air, water, soil, and sunlight. The concept of an ecosystem encompasses not just the organisms present but also how they interact with each other and their environment, making it a fully integrated system.

While the biosphere includes all ecosystems on Earth and encompasses a global scale of interactions, it does not focus specifically on the interactions occurring within a smaller, manageable unit. A region typically refers to a defined area that may contain multiple ecosystems but doesn't specifically highlight the interactions that occur. Similarly, a landscape refers to a broader area that includes various ecosystems but again does not focus specifically on the dynamic interactions between biotic and abiotic components. Thus, the term "ecosystem" is the most appropriate choice as it encapsulates both the biological communities and their interactions with the physical environment.