By WWII, scientists had already begun looking at alternative gelling substances for routine use in bacteriology, but concluded that agar was still better as it is both firmer and easier to handle. Today, some specialized microbiology applications use the colloid carrageenan (extracted from red seaweed Chondrus crispus, or “Irish Moss”), a more transparent and less auto-fluorescent alternative to agar (agar emits its own background fluorescence when excited by light). However, for routine bacteriological use, carrageenan is more difficult to dissolve, requires higher concentrations, can degrade at high temperatures, and forms weaker gels, which may result in puncturing its surface during the plating of cells.
14:34, 27 февраля 2026Экономика，推荐阅读heLLoword翻译官方下载获取更多信息
，这一点在搜狗输入法2026中也有详细论述
Delivery drivers are due to receive $79m worth of payouts from the settlement, according to FTC leaders. Walmart did not respond to a question about how much on average each driver would receive.
总结回望2025年的育儿时光，只能说感慨万千。都说「不养儿，不知父母恩」，其实自己生了孩子到现在才觉得，「养」比「生」难的多。。关于这个话题，爱思助手下载最新版本提供了深入分析
Медведев вышел в финал турнира в Дубае17:59