By asking it
Sinply ask
Thats why we were given a mouth
To use it
Or be built different
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Basically because your skin has several layers to it (see link, below), and the layer that has the blood vessels capable of bleeding in it is further down than a superficial scrape would affect.
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If you have a DNA sequence that codes for a protein and is 105 nucleotides long, and a frameshift mutation occurs at the 85th base there will be 84/3 <span> amino acids that will be correct in this </span><span>protein </span>because it occurs on the 85th, and there's three per codon. Hope this answers the question. Have a nice day.
<em>Direct </em><em>Contact</em><em> </em><em>Infection</em>
<em>Direct</em><em> contact are touching, kissing, contact with oral secretions, or contact with body lesions.</em>
<em>Hope</em><em> </em><em>it</em><em> </em><em>helps</em><em> </em><em>(⌒▽⌒)</em><em>(⌒▽⌒)</em>