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tylizard t1_j2eyl4y wrote

"lot more important" is probably the wrong way to put that both are essential to life.

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silvesterdepony t1_j2f0988 wrote

There are a ton of things that are essential to life, but we can still create a hierarchy of importance based on various criteria such as tolerance to disruption of homeostasis.

We have very little tolerance for the disruption of CO2 homeostasis before our brain freaks out.

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