EESA01H3 Lecture Notes - Lecture 3: Transform Fault, Ecosystem Respiration, Convergent Boundary
Document Summary
System: is a network of relationships among parts, elements, or components of the environment that interact and influence one another thru the exchange of energy and matter. Open system: receives inputs of energy and matter; produces outputs of both; energy and matter coming in and coming out. Closed system: receive inputs of energy only; produces outputs of energy only. Possible for outputs of a system to affect the input to that system, or to serve as the input to that same system. *negative feedback loops: outputs from systems becomes input to a system, moving that system in an opposite direction. Outputs stabilize the conditions of a system. These would be good, but we"re only hopeful that they occur (unlikely) Ex. lots of rabbits (prey) can support many foxes (predators; that eat prey). Positive feedback loops: outputs from a system affectively make things worse. These are bad, and are certainly occurring.
