Monday, August 3, 2009

Shorter Lives For Cold-blooded Animals

Temperature explains much of why cold-blooded organisms such as fish, amphibians, crustaceans, and lizards live longer at higher latitudes than at lower latitudes, according to research recently published in the the copepod Arcartia tonsa, which has an averagehat's so great about sex? From an evolutionary perspective, the answer is not as obvious as one might think. An article published in the July issue of the Am lifespan of 11.6 days, to the pearl mussel Margaritifera margaritifera, which has an average lifespan of 74 years. They found that across this wide range of species, temperature was consistently exponentially t feeds by gnawing its way into a carcass and staying inside it to feed for long periods of time. Dan Baker from the University of British ColumbThe same rules that apply to a liquid inside a beaker should apply to animals. Chemists have a relationship for how an increase in temperature will speed up reaction rates, so the MTE borrows that relationship and applies it--with some obvious ca


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Am vazut multe ceasuri superbe pe www.topceas.ro


Am vazut multe ceasuri superbe pe www.topceas.ro


Am vazut multe ceasuri superbe pe www.topceas.ro


Am vazut multe ceasuri superbe pe www.topceas.ro