The human body produces and destroys 15 million blood cells every second.
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The horizontal fraction bar was introduced by the Arabs.
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People with high total cholesterol have about two times the risk for heart disease as people with ideal levels.
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All adults should have their cholesterol levels checked once every 5 years. During 2009–2010, 69.4% of Americans age 20 and older reported having their cholesterol checked within the last five years.
Different ways to depict phylogenetic relationships
Cross Section of Skin
Bone Cross-section
Cross section of a myocardial infarction.
Because the factor h on the right side of the Heisenberg uncertainty principle has units of ...