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Parkinson's disease is both chronic and progressive. This means that it persists over a long period of time and that its symptoms grow worse over time.

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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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Every 10 seconds, a person in the United States goes to the emergency room complaining of head pain. About 1.2 million visits are for acute migraine attacks.

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The FDA recognizes 118 routes of administration.

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Prostaglandins were first isolated from human semen in Sweden in the 1930s. They were so named because the researcher thought that they came from the prostate gland. In fact, prostaglandins exist and are synthesized in almost every cell of the body.

The first commercially successful typewriter, manufactured in quantity beginning in 1874, surely fue The first commercially successful typewriter, manufactured in quantity beginning in 1874, surely fue
Selective pressures from the environment influence adaptation Selective pressures from the environment influence adaptation
An infant begins to notice the external environment by the age of 4 to 8 months An infant begins to notice the external environment by the age of 4 to 8 months
A sample of work by a Grade 4 student with a specific learning disorder A sample of work by a Grade 4 student with a specific learning disorder
Jamal plans to retire in 17 years. He is saving $2000 every start of the month in a retirement ... Jamal plans to retire in 17 years. He is saving $2000 every start of the month in a retirement ...
Two Cnidarian Body Plans Two Cnidarian Body Plans
Video: Inflammatory response Animation

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