http://www.physorg.com/ en-us Physorg.com internet news portal provides the latest news on science including: Physics, Nanotechnology, Life Sciences, Space Science, Earth Science, Environment, Health and Medicine. Plants that live in the soil don't live alone -- a mere teaspoon of soil teems with an estimated billion microscopic organisms. http://www.physorg.com/news171634295.html Biology Tue, 08 Sep 2009 13:12:05 EST news171634295 A new study shows that the DNA of so-called "good bacteria" that normally live in the intestines may help defend the body against infection. http://www.physorg.com/news142181538.html Medicine & Health Thu, 02 Oct 2008 15:52:18 EST news142181538