Examlex
There is a company in the United States that currently sends letters to people who have declared bankruptcy and offers them $45,000,plus expenses,to donate a kidney.
Body Fluids
Liquids within the human or animal body that transport nutrients and waste, including blood, lymph, and interstitial fluid.
Chemicals
Substances with a distinct molecular composition that are used or produced in processes involving chemical reactions.
pH
A measure of the acidity or alkalinity of a solution, defined by the negative logarithm of the hydrogen ion concentration.
Buffer System
A chemical system that maintains the pH of a solution by adjusting the proportion of acid and base.
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