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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Human stomach acid is strong enough to dissolve small pieces of metal such as razor blades or staples.
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The most common treatment options for addiction include psychotherapy, support groups, and individual counseling.
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After 5 years of being diagnosed with rheumatoid arthritis, one every three patients will no longer be able to work.
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Thyroid conditions may make getting pregnant impossible.
How Many Indians Perished with European Settlement?
Spanish-American War: Caribbean Theater, 1898
Rackstraw Downes, Presidio in the Sand Hills Looking East with ATV Tracks and Water Tower.