| 31. | Selenium-encourages tissue elasticity and is a powerful antioxidant.
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| 32. | There is high arsenic, high selenium, high mercury.
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| 33. | Selenium is not believed to be the cause of the hermaphroditic rodents.
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| 34. | Selenium is an important nutrient but is also commonly toxic.
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| 35. | Selenium and tellurium are produced as byproducts of copper refining.
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| 36. | There are some organic selenium compounds, such as selenoproteins.
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| 37. | Selenium makes up 30 parts per billion of the universe by weight.
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| 38. | Experiments were also to be conducted on the selenium-celled Photophone.
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| 39. | Selenium is a component of the unusual amino acids selenocysteine and selenomethionine.
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| 40. | Selenium enzymes are involved in the small reducing molecules glutathione and thioredoxin.
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