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

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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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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).

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There are more bacteria in your mouth than there are people in the world.

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Drying your hands with a paper towel will reduce the bacterial count on your hands by 45–60%.

Any number of crossovers gives 50 percent recombinants Any number of crossovers gives 50 percent recombinants
Identical twins share 100 percent of their segregating genes. Identical twins share 100 percent of their segregating genes.
Outcome of myocardial infarction. Forty percent of 1-week survivors have late complications ... Outcome of myocardial infarction. Forty percent of 1-week survivors have late complications ...
How to solve any percent change problem How to solve any percent change problem
Percent of Selected Foods and Beverages Consumed in the United States Percent of Selected Foods and Beverages Consumed in the United States
Daniel's Enterprises has a beta of 1.98 and a growth rate of 12 percent. The stock is ... Daniel's Enterprises has a beta of 1.98 and a growth rate of 12 percent. The stock is ...
Video: Nervous pathway to the Neuromuscular (NMJ)

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