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Human Body Systems
Diffusion
Diffusion definition: The movement of molecules from an area of higher density to an area of lower density.
Related Terms
Artery
Capillary
Circulatory System
Digestive System
Esophagus
Kidney
Large Intestine
Muscular System
Nervous System
Respiratory System
Skeletal System
Small Intestine
Urinary Bladder
Vein
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