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There are over 65,000 known species of protozoa. About 10,000 species are parasitic.
You should not take more than 1,000 mg of vitamin E per day. Doses above this amount increase the risk of bleeding problems that can lead to a stroke.
An identified risk factor for osteoporosis is the intake of excessive amounts of vitamin A. Dietary intake of approximately double the recommended daily amount of vitamin A, by women, has been shown to reduce bone mineral density and increase the chances for hip fractures compared with women who consumed the recommended daily amount (or less) of vitamin A.
Hypertension is a silent killer because it is deadly and has no significant early symptoms. The danger from hypertension is the extra load on the heart, which can lead to hypertensive heart disease and kidney damage. This occurs without any major symptoms until the high blood pressure becomes extreme. Regular blood pressure checks are an important method of catching hypertension before it can kill you.
The first war in which wide-scale use of anesthetics occurred was the Civil War, and 80% of all wounds were in the extremities.
![Male individuals of the banded Uromastyx, Uromastyx flavofasciata, are different colours. Most natur](https://biology-forums.com/gallery/47/medium_33_22_09_11_9_37_27_18091385.jpeg)
![Species, subspecies, populations, and individuals. Species are reproductively isolated from one anot](https://biology-forums.com/gallery/47/medium_274247_21_01_15_7_40_14_202762058.jpeg)