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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.
In 1885, the Lloyd Manufacturing Company of Albany, New York, promoted and sold "Cocaine Toothache Drops" at 15 cents per bottle! In 1914, the Harrison Narcotic Act brought the sale and distribution of this drug under federal control.
Eating food that has been cooked with poppy seeds may cause you to fail a drug screening test, because the seeds contain enough opiate alkaloids to register as a positive.
The oldest recorded age was 122. Madame Jeanne Calment was born in France in 1875 and died in 1997. She was a vegetarian and loved olive oil, port wine, and chocolate.
Fungal nail infections account for up to 30% of all skin infections. They affect 5% of the general population—mostly people over the age of 70.
![Key anatomical features of Homo habilis include reduced facial size, a parabolic palate, and some br](https://biology-forums.com/gallery/47/medium_275510_22_02_15_5_56_51_2070597.jpeg)
![Major features of Homo erectus include increased brain size, an angular vault, and cranial superstru](https://biology-forums.com/gallery/47/medium_275510_22_02_15_5_56_52_207622175.jpeg)