Which term best describes a system consisting of living organisms and their physical environment interacting in a given area?

Which term best describes a system consisting of living organisms and their physical environment interacting in a given area?

• A. Habitat
• B. Ecosystem
• C. Climate
• D. Population

Answer: (B)

An ecosystem describes a system where living organisms interact with the physical environment in a given area, with energy flow and nutrient cycles linking everything together. It includes both the living components (plants, animals, microbes) and the non-living components (air, water, soil, climate), and the processes that connect them. A habitat is just the place where organisms live, not the whole network of interactions. Climate is the pattern of weather over time, not the living interactions within a system. Population refers to how many individuals of a species are present, which is only a part of the broader system. So the term that best captures the interacting living and physical components in a given area is ecosystem.

An ecosystem describes a system where living organisms interact with the physical environment in a given area, with energy flow and nutrient cycles linking everything together. It includes both the living components (plants, animals, microbes) and the non-living components (air, water, soil, climate), and the processes that connect them. A habitat is just the place where organisms live, not the whole network of interactions. Climate is the pattern of weather over time, not the living interactions within a system. Population refers to how many individuals of a species are present, which is only a part of the broader system. So the term that best captures the interacting living and physical components in a given area is ecosystem.