An ecosystem is any geographic area that includes all of the organisms and nonliving parts of their physical environment. An ecosystem can be a natural wilderness area, a suburban lake or forest, or a ...

An ecosystem is a complex network of interactions among living organisms and their physical environment ... The balance of these components is crucial for the health and sustainability of ecosystems.

A variety of ecosystems are spread across the world, each with distinctive interacting characteristics and components. They range from small (for example, a freshwater pond) to global (for example ...

[Clarification Statement: Emphasis is on predicting consistent patterns of interactions in different ecosystems in terms of the relationships among and between organisms and abiotic components of ...