... puzzlingly unstable and idiosyncratic. Butunlike these and other such networks, life is stable – it is able to withstand, or adaptto, remarkably severe external jolts and shocks; and its stability ... our understanding. A cellular network of a thousand proteins (catalysts and molecules that sense, signal, and control passage across membranes; act as thestructural skeleton; and perform many ... to produce the energy for life. Inthis process, the oxygen combines with the carbon and hydrogen to form carbondioxide and water, waste products that must be eliminated. Fortunately, carbondioxide...