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the spontaneous movement of molecules, atoms or ions, from an area of higher concentration to an area of lower concentration, of a particular molecule, atom or ion, until dynamic equilibrium is achieved.
an infectious disease of the digestive system that is characterised by diarrhoeaandbloodinthe...
the field of study that provides scientific names for organisms, describes them, preserves...
region of the kidney into which urine is discharged from the collecting ducts of the nephrons,...
unicellular organisms that contain a true nucleus and membrane bound organelles. All protists...