How Much Urine Is Produced in a Day?
Fri, 03/12/10 – 4:38 | No Comment

The kidney is essentially a big filter that plays a vital role in the body’s ability to reabsorb and excrete various substances as well as maintain fluid balance. Through a series of complex interactions with …

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How Viruses Mutate: Antigenic Shift

Submitted by admin on Wednesday, May 13 2009No Comment


This 1+ minute video explains why viruses that undergo antigenic shifts are dangerous because the human immune system lacks the ability to block the virus from replicating.

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