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anonymous

Circulatory System - Amazing Science Online! - 0 views

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    "The circulatory system is one of the major systems in the human body and is responsible for the transport of nutrients, wastes and hormones throughout the body. The heart, blood, arteries, capillaries and veins form the circulatory system. Resources on the lymphatic system are also found on this topic page.  "
anonymous

Did Cancer Evolve to Protect Us? - Scientific American - 1 views

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    "Could cancer be our cells' way of running in "safe mode," like a damaged computer operating system trying to preserve itself, when faced with an external threat? That's the conclusion reached by cosmologist Paul Davies at Arizona State University in Tempe (A.S.U.) and his colleagues, who have devised a controversial new theory for cancer's origins, based on its evolutionary roots. If correct, their model suggests that a number of alternative therapies, including treatment with oxygen and infection with viral or bacterial agents, could be particularly effective."
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