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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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To prove that stomach ulcers were caused by bacteria and not by stress, a researcher consumed an entire laboratory beaker full of bacterial culture. After this, he did indeed develop stomach ulcers, and won the Nobel Prize for his discovery.

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Patients should never assume they are being given the appropriate drugs. They should make sure they know which drugs are being prescribed, and always double-check that the drugs received match the prescription.

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If all the neurons in the human body were lined up, they would stretch more than 600 miles.

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Although puberty usually occurs in the early teenage years, the world's youngest parents were two Chinese children who had their first baby when they were 8 and 9 years of age.

Major veins of the systemic circulation. Major veins of the systemic circulation.
major events at the synapse major events at the synapse
The major divisions of the nervous system. The major divisions of the nervous system.
Summary of major brain structures. Summary of major brain structures.
Major biosynthetic roles of some citric acid cycle intermediates Major biosynthetic roles of some citric acid cycle intermediates
Major Structures of the Human Brain Major Structures of the Human Brain
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