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Mercury is NOT used in
pH
A measure of the acidity or alkalinity of a solution, determined by the concentration of hydrogen ions, with lower values being more acidic and higher values more alkaline.
Chemical Digestion
The breakdown of food into smaller molecules, facilitated by enzymes, so they can be absorbed by the body.
Ileum
The final and longest segment of the small intestine, where most of the absorption of nutrients and water takes place.
Duodenum
The first and shortest section of the small intestine, where a significant part of digestion occurs.
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