<span>The reason why the human body shivers when it is could is to
begin warming it up this is a natural reflex of the human body once it drops
below a certain temperature </span>
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<span>Some mutations don't have any noticeable effect on the phenotype of an organism. This can happen in many situations: perhaps the mutation occurs in a stretch of DNA with no function, or perhaps the mutation occurs in a protein-coding region, but ends up not affecting the amino acid sequence of the protein.</span>
