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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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Critical care patients are twice as likely to receive the wrong medication. Of these errors, 20% are life-threatening, and 42% require additional life-sustaining treatments.

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In ancient Rome, many of the richer people in the population had lead-induced gout. The reason for this is unclear. Lead poisoning has also been linked to madness.

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For pediatric patients, intravenous fluids are the most commonly cited products involved in medication errors that are reported to the USP.

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Amoebae are the simplest type of protozoans, and are characterized by a feeding and dividing trophozoite stage that moves by temporary extensions called pseudopodia or false feet.

Hematopoesis (Genesis of blood cells) Hematopoesis (Genesis of blood cells)
The response of hair cells to mechanical stimulation. The response of hair cells to mechanical stimulation.
Communication by direct contact between cells. Communication by direct contact between cells.
simple squamous alveoli simple squamous alveoli
A blood smear. The smear reveals representative cells from each formed element group: red blood cell A blood smear. The smear reveals representative cells from each formed element group: red blood cell
Types of active transport into and out of cells. Types of active transport into and out of cells.
Video: Introduction to Herpes

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