When is it necessary to add a drop of water during smear preparation? • It is necessary every time you prepare a smear. When you are obtaining bacteria, but not mold. When you are obtaining your sample from a broth. When you are obtaining your sample from a plate. When there is a little sample of microbes.
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Step 1: A smear is a thin film of a specimen spread on a slide for microscopic examination. Show more…
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