单词：cell operating temperature
单词：cell operating temperature 相关文章
Cells cannot remain alive outside certain limits of temperature and much narrower limits mark the boundaries of effective functioning. Enzyme systems of mammals and birds are most efficient only withi
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Learning a New Operating System Vanessa: [gasps] What happened to my computer overnight? This cant be my computer. Reza: It is. The tech guys installed a new operating system on all of the computers after hours. Vanessa: But my desktop looks complete
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Its easy to think of computer as just machinery: buttons, screens and parts that work together. But the magic of computers comes from something makes them unique to you. This is Computer Software In Plain English. The problem with computers is that m
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This is Scientific American's 60-Second Science. I'm Karen Hopkin. This will just take a minute. We can get viruses from the Internet. But can we catch viruses on our cell phones? A new study in the journal Science says yes, but the spread of such ma
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PCRthe polymerase chain reactionis a crucial tool. The DNA amplification technique is used in genome sequencing, forensics and the diagnosis of various diseases. To give researchers more genetic material to work with, a PCR instrument repeatedly heat
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Some bacteria have adapted to super cold environments for millions of years. And scientists have isolated some of the essential genes that allow bacteria to tolerate their harsh living conditionsbecause these same genes might help in the creation of
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