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Archive del 14 marzo 2010

sineparole

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Ritmi circadiani

Tutte le attività biologiche dei viventi sono caratterizzate da un andamento ciclico la cui durata è di circa 24 ore.

Immagine anteprima YouTube

polarsleepbear

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    To protect their gut microbes during illness, sick mice produce specialized sugars in the gut that feed their microbiota and maintain a healthy microbial balance. This protective mechanism also appears to help resist or tolerate additional harmful pathogens, and its disruption may play a role in human diseases such as Crohn’s disease.
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    Contrary to the popular research-based assumption that the world's coral reefs are doomed, a new longitudinal study paints a brighter picture of how corals may fare in the future. A subset of present coral fauna will likely populate oceans as water temperatures continue to rise, researchers have reported.
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    When scientists talk about the consequences of climate change, it can mean more than how we human beings will be impacted by higher temperatures, rising seas and serious storms. Plants and trees are also feeling the change, but they can't move out of the way. Researchers have developed a new tool to overcome a major challenge of predicting how organisms […]
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