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trace element |
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trace elementChemical element necessary in minute quantities for the health of a plant or animal. For example, magnesium, which occurs in chlorophyll, is essential to photosynthesis, and iodine is needed by the thyroid gland of mammals for making hormones that control growth and body chemistry. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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Tozzi, Giorgio TQM Trabaci, Giovanni Maria Trabert, Tony Trâblous Trabzon trace trace element trace element analysis tracer traceroute tracery trachea tracheid tracheotomy |
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