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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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People about to have surgery must tell their health care providers about all supplements they take.

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In most climates, 8 to 10 glasses of water per day is recommended for adults. The best indicator for adequate fluid intake is frequent, clear urination.

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After a vasectomy, it takes about 12 ejaculations to clear out sperm that were already beyond the blocked area.

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The Romans did not use numerals to indicate fractions but instead used words to indicate parts of a whole.

Comparison of reactions at equilibrium and steady state Comparison of reactions at equilibrium and steady state
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When teenagers live in single-parent homes, a good relationship with grandparents is related to ... When teenagers live in single-parent homes, a good relationship with grandparents is related to ...
To search for the Native American family would be fruitless. There are rural, urban, single-parent, ... To search for the Native American family would be fruitless. There are rural, urban, single-parent, ...
Percentage of Americans Living in Communities with a Fluoridated Water Supply, by State. 2012 Percentage of Americans Living in Communities with a Fluoridated Water Supply, by State. 2012
Red Spotted Newt (Notophthalmus v. viridescens), New Hampshire state animal. Red Spotted Newt (Notophthalmus v. viridescens), New Hampshire state animal.
Video: Role of the respiratory system - effect of altered ventilation rates

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