On average, someone in the United States has a stroke about every 40 seconds. This is about 795,000 people per year.
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The B-complex vitamins and vitamin C are not stored in the body and must be replaced each day.
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Vampire bats have a natural anticoagulant in their saliva that permits continuous bleeding after they painlessly open a wound with their incisors. This capillary blood does not cause any significant blood loss to their victims.
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Cyanide works by making the human body unable to use oxygen.
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There are 20 feet of blood vessels in each square inch of human skin.
Bacteria conjugate by using pili
Placenta previa. The condition is caused by the development of the placenta over the cervical canal,
Bacteria Diagram
Estimated Number of New Sexually Transmitted Infections
Estimated number of new HIV infections per year over time period in Canada
RNA-induced transcriptional silencing (RITS) in yeast