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The average office desk has 400 times more bacteria on it than a toilet.
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Many people have small pouches in their colons that bulge outward through weak spots. Each pouch is called a diverticulum. About 10% of Americans older than age 40 years have diverticulosis, which, when the pouches become infected or inflamed, is called diverticulitis. The main cause of diverticular disease is a low-fiber diet.
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It is important to read food labels and choose foods with low cholesterol and saturated trans fat. You should limit saturated fat to no higher than 6% of daily calories.
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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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It is believed that the Incas used anesthesia. Evidence supports the theory that shamans chewed cocoa leaves and drilled holes into the heads of patients (letting evil spirits escape), spitting into the wounds they made. The mixture of cocaine, saliva, and resin numbed the site enough to allow hours of drilling.
The structure of a typical flower.
Typical Examination Room Equipment and Supplies
A typical hacksaw that is used to cut metal. If cutting sheet metal or thin objects, then use a ...
Typical laboratory emergency shower.
Structures of a few typical eukaryotic promoters
Soybean plants in nitrogen-poor soil show how root nodules affect growth. Only the darker green plan