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moselio schaechter

It depends if you are a human, a cow, or an aphid.

If a human, make sure you get vitamin K supplements plus some other stuff. Of course, if you include the mitochondria in "normal biota," you'd face demise in minutes.

If a cow, you'd starve to death because your main energy source are the volatile fatty acids made by the microbes in your rumen.

If you are an aphid, you'd run out of luck after a while because you can make or obtain from the plant sap you eat a number of amino acids that are normally supplied by endosymbiotic Buchnera.

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