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Symptoms of kidney problems include a loss of appetite, back pain (which may be sudden and intense), chills, abdominal pain, fluid retention, nausea, the urge to urinate, vomiting, and fever.

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The first-known contraceptive was crocodile dung, used in Egypt in 2000 BC. Condoms were also reportedly used, made of animal bladders or intestines.

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In the United States, an estimated 50 million unnecessary antibiotics are prescribed for viral respiratory infections.

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More than nineteen million Americans carry the factor V gene that causes blood clots, pulmonary embolism, and heart disease.

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Alzheimer's disease affects only about 10% of people older than 65 years of age. Most forms of decreased mental function and dementia are caused by disuse (letting the mind get lazy).

A king cheetah showing its distinctive coat pattern A king cheetah showing its distinctive coat pattern
Crocodiles leave distinctive bite marks that reflect the shape of their teach. Crocodiles leave distinctive bite marks that reflect the shape of their teach.
Hearing and Reading Words Hearing and Reading Words
Typical secondary ignition pattern. Note the lack of firing lines on superimposed pattern. Typical secondary ignition pattern. Note the lack of firing lines on superimposed pattern.
Common Root Words and Combining Forms Common Root Words and Combining Forms
Spelling patterns Grade 1 Spelling patterns Grade 1
Video: Knee Animation

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