Hardness

... I live. Of that, about 200-250 parts per million is dissolved sodium. The pH is about 7.8. We have very soft water, with less than one grain of hardness.

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... living cells. Xylem: Hard wall cells transport water and mineral nutrients Phloem: Relatively soft -walled cells transport organic nutrients "Hardness and softness" is a function of the amount of lignification and extractive content of the individual cell walls not there location in the ...

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hard to say, because it's soft, so can you actually talk about hardness of muscles?

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What is the mohs hardness of human muscle?

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... (for obvious reasons) and hard-bodied creatures first arose in the water. The predecessors to these organisms would, at some point, fall below the hardness threshold for fossilization to be likely. Similarly, our record of fossil insects isn't nearly as complete as we'd like it to be. Should we ...

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