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what does the term 'factor' mean in Mendel's first law ?
Weegy: heredity unit or genes. (More)
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Asked 8/6/2011 4:49:04 AM
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why can't you use the same lancet twice ?
Weegy: The needle is extremely small and thin and when it punctures the skin it gets damaged. This damage can make it painful to use more than once. EVEN MORE IMPORTANT is the fact that when the needle goes into the tissue it contacts blood which is sticky. [ The needle may look clean but it is now covered in microscopic bacteria and maybe even viruses. You can wipe it off but remember the needle is damaged and now storing bacteria in its ... (More)
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Asked 8/6/2011 4:55:45 AM
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why do you need different toothpick to mix the blood and serum
Weegy: I don't know what experiment you're conducting, but when the directions tell you explicitly that you need to use a fresh utensil, then there must be the potential for contamination. [ Most likely using a different toothpick prevents the contents of slide one from crossing to slide two, which could invalidate your results. ] (More)
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Asked 8/6/2011 5:05:47 AM
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