Extremes

Not sure poster meant application of pH extremes. In any case, you'd have to establish pretty extreme conditions - well outside the 6-7 range. Vibrio cholerae grows well in the 8-9 range and Salmonella spp. Staphylococcus aureus from 4-9. Some ...

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Gavin In the northern hemisphere - autumn in the south - spring. In the tropics, warm, at the extremes - cold. Very sorry, uh ... but may I ask your permission at least to make assumptions? :roll:

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... stung by a wasp as a child). The "natural" genetically programmed stand towards spiders and such is probably somewhere between those extremes: a natural cautiousness towards things or animals that are not proven to be safe, affected by the general mindset of the person in question ...

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... and mastiffs and poodles and spaniels, would you classify them as different species? It is artificial selection, which drives specific traits to extremes quickly, but it is kind of "proof of concept" results.

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... can survive a fair amount of use, as well as a fair amount of disuse. You can be a body-builder or you can rest on the couch, and only at the extremes of those lifestyles are problems caused. In the reasonable medium between extremes, you simply develop whichever muscles you "practice" ...

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