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There are over 65,000 known species of protozoa. About 10,000 species are parasitic.

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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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Hippocrates noted that blood separates into four differently colored liquids when removed from the body and examined: a pure red liquid mixed with white liquid material with a yellow-colored froth at the top and a black substance that settles underneath; he named these the four humors (for blood, phlegm, yellow bile, and black bile).

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Cutaneous mucormycosis is a rare fungal infection that has been fatal in at least 29% of cases, and in as many as 83% of cases, depending on the patient's health prior to infection. It has occurred often after natural disasters such as tornados, and early treatment is essential.

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Urine turns bright yellow if larger than normal amounts of certain substances are consumed; one of these substances is asparagus.

Cade and colleagues discovered a way to improve athletic performance and prevent salt and water imba Cade and colleagues discovered a way to improve athletic performance and prevent salt and water imba
Water Potential, Solute Potential, and Pressure Potential Water Potential, Solute Potential, and Pressure Potential
Water Molecules Water Molecules
This internal bypass passage in the thermostat housing directs cold coolant to the water pump. This internal bypass passage in the thermostat housing directs cold coolant to the water pump.
Waves Approaching the Shore Waves Approaching the Shore
For Transport, Put the Amputated Part in a Dry, Sealed Bag and Place It in Cool Water That Contains For Transport, Put the Amputated Part in a Dry, Sealed Bag and Place It in Cool Water That Contains
Video: Gas exchange - partial pressure, locations, external and internal respiration

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