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Human stomach acid is strong enough to dissolve small pieces of metal such as razor blades or staples.
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There are more sensory neurons in the tongue than in any other part of the body.
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The lipid bilayer is made of phospholipids. They are arranged in a double layer because one of their ends is attracted to water while the other is repelled by water.
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A strange skin disease referred to as Morgellons has occurred in the southern United States and in California. Symptoms include slowly healing sores, joint pain, persistent fatigue, and a sensation of things crawling through the skin. Another symptom is strange-looking, threadlike extrusions coming out of the skin.
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There are more bacteria in your mouth than there are people in the world.