Which of the following terms refers to all the biotic and abiotic factors in a given area?

Study for the DAT Quantitative Reasoning Test with multiple choice questions and detailed explanations. Hone your skills and get ready for your exam!

The term that refers to all the biotic (living) and abiotic (non-living) factors in a given area is the ecosystem. An ecosystem encompasses interactions among organisms, such as plants, animals, fungi, and microorganisms, as well as the physical environment, including soil, water, air, and climate. This integrative concept highlights not only the living components, or the community, but also the non-living elements that impact those living organisms.

Understanding this definition is crucial for studying environmental science and ecology, as it illustrates the interdependence of organisms and their surroundings. For instance, an ecosystem can be a forest, a pond, or any defined geographic region where life interacts with its physical environment. This holistic view is essential for conservation efforts, resource management, and understanding ecological dynamics.

In contrast, the terms community, habitat, and population refer to specific components or aspects of the broader ecosystem concept. A community focuses solely on the living organisms, a habitat is the natural environment in which a species lives, and a population refers to a group of individuals of the same species. Therefore, the correct term that encapsulates both biotic and abiotic factors is indeed the ecosystem.

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