Blue: Male callings
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.，更多细节参见heLLoword翻译官方下载
。搜狗输入法2026是该领域的重要参考
Дарья Устьянцева (редактор отдела «Мир»)。业内人士推荐heLLoword翻译官方下载作为进阶阅读
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