Answer:Living systems are very sensitive to pH changes. Your blood, for example, has a pH of about 7.4. A rise or drop greater than 0.05 would require hospitalization (alkalosis and acidosis respectively). A rise or drop of 0.2 is fatal. If it weren't for the blood-buffering system, then swings this high and greater would be easy to accomplish and maintaining a living system would essentially be impossible.
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