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Normal urine is sterile. It contains fluids, salts, and waste products. It is free of bacteria, viruses, and fungi.

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The first documented use of surgical anesthesia in the United States was in Connecticut in 1844.

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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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Hyperthyroidism leads to an increased rate of metabolism and affects about 1% of women but only 0.1% of men. For most people, this increased metabolic rate causes the thyroid gland to become enlarged (known as a goiter).

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Human kidneys will clean about 1 million gallons of blood in an average lifetime.

(A) Each bronchiole terminates in an alveolar sac, a group of alveoli; (B) alveoli encased by networ (A) Each bronchiole terminates in an alveolar sac, a group of alveoli; (B) alveoli encased by networ
Gorillas are the largest living primates. Gorillas are the largest living primates.
Splicing mechanisms in group I and group II self-splicing introns and spliceosom Splicing mechanisms in group I and group II self-splicing introns and spliceosom
Group Size Group Size
Hydrophilic Group Hydrophilic Group
The Largest Cell The Largest Cell
Video: Introduction to Diabetes

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