Examlex
Explain how an LED lamp works.
Diffusion
Movement of molecules or ions from a region of higher to lower concentration; it requires no energy and tends to lead to an equal distribution (equilibrium).
Urinary System
Organ system of humans that includes the kidneys, urinary bladder, and associated structures; excretes metabolic wastes; maintains fluid balance; helps control pH.
Blood Ph
The measure of acidity or alkalinity of blood, maintained within a very narrow range, essential for physiological processes.
Nitrogenous Wastes
Waste products containing nitrogen, such as urea and ammonia, excreted by living organisms.
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