<span>The virus uses the cell to replicate itself and then moves on. The cell, after replication dies as the new virus spreads.
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Amount of wear, and how long they are may contribute with age and maybe even coloration and pigment.
<span>In the skeletal muscle cells of vertebrates, as many as 38 molecules of ATP are produced from one molecule of glucose. This is less than might be expected, because electrons from NADH produced during glycolysis must be shuttled through the inner mitochondrial membrane at a cost.
</span>The energy of the electrons can be used to make ATP and in eukaryotes, glycolysis occurs in the <span>cytosol, outside mitochondria. </span>
They've constructed these proteins from beta-amino acids, which are distinct from the alpha-amino acids that compose natural proteins. Their synthetic proteins are as stable as natural ones, but provide a distinct advantage.
I believe the correct answer is acid rain.