The behavior of complex biological and ecological systems seems at first sight rather remote from the dynamics of inanimate matter. Yet common threads run from the simplest of physical interactions to the most intricate processes in an ecosystem. One such thread, positive feedback, is prevalent in all manner of every day and exotic physical and chemical phenomena. We will follow this strand through a diversity of inanimate systems in this chapter and will see that it leads us to the biological and ecological systems that are the subjects of later chapters.
KeywordsPositive Feedback Heavy Nucleus Dissipative Structure Convective Instability Gravitational Attraction
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