Answers. Relevance. Rating Newest Oldest. Best Answer: a Spanish term that was formerly used in the Spanish Empire to designate people of mixed European (Spaniard) and Amerindian ancestry living in the region of Latin America.[1] The word originated from the Romance language / Latin word Mixticius, meaning mixed.
For centuries, lead toxicity has been one of the most significant preventable causes of neurologic morbidity from an environmental toxin. A heavy metal, lead is ubiquitous in our environment but has no physiologic role in biological systems.
Copper and lead can be toxic and can leach. into tap water in older or in new homes. This. leaching is caused by corrosion. Copper contamination can cause. gastrointestinal problems in the short term and. damage the liver and kidneys over time. Lead contamination can cause physical and.