Before agar, microbiologists had experimented with other foodstuffs as microbial media. They turned to substances rich in the starches, proteins, sugars, fats, and minerals that organisms need for growth, testing with broths, bread, potatoes, polenta, egg whites, coagulated blood serums, and gelatine. However, none worked particularly well: all were easily broken down by heat and microbial enzymes, and their surface, once colonized, became mushy and unsuitable for isolating microbes.
Reese Witherspoon is supposed to be proof that the “follow your dreams” directive works: She’s an Oscar-winning actress with a hit production company, a $400-million-plus net worth, and a Nashville mansion.
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（二）仲裁请求和所根据的事实与理由；