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Different cell types—say, heart, liver, blood, and sperm cells—possess characteristics that help them carry out their unique jobs in the body. In general, those characteristics are hard-wired. Without...
Losses of important eelgrass meadows in western Sweden since the 1980s have led to considerable bottom erosion and the release of carbon and nitrogen; substances that contribute to increasing climate ...
Common yeast are able to adapt and thrive in response to a long-term rise in temperature by changing the shape, location and function of some of their proteins. The surprising findings demonstrate the...
A new study finds that the more than 90,000 species of mushrooms, molds, yeasts and other fungi found everywhere in the soil, water and air may owe their abilities to grow, spread, and even cause dise...
Species borders are centrally important to ecology, and their dynamics are key to understanding how ecosystems respond to environmental changes. Range boundaries of habitat-forming species are esp...
Geologists are letting the air out of a nagging mystery about the development of animal life on Earth. Scientists have long speculated as to why animal species didn’t flourish sooner, once sufficient...
Trillions of bacteria live in each person’s digestive tract. Scientists believe that some of these bacteria help digest food and stave off harmful infections, but their role in human health is not wel...
For years, biologists have wondered how it is possible that not every person who carries a mutated gene expresses the trait or condition associated with the mutation. This common but poorly understood...
专著信息 书名 Bone marrow-derived cells give rise to skin cells and regenerate skin tissue. 语种 英文 撰写或编译 作者 Weimin Deng,Changhong Li,Lianming Liao,Zhigang Zhao,Wei Ge,Shengguo You,Hongye Deng,and Zhao RCH 第一...
November 29, 2006,PASADENA, Calif.--Two and a half billion years ago, when our evolutionary ancestors were little more than a twinkle in a bacterium's plasma membrane, the process known as photosynthe...

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