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region of the kidney into which urine is discharged from the collecting ducts of the nephrons, before being passed into the ureter.
living ground tissue with thick-walled cells that gives strength, support and protection to a...
substance used to test for the presence of starch. It is a mixture of elemental iodine,...
small fluid-filled spaces in the matrix of bone and cartilage in which cartilage and bone cells...
an injection of a weakened or dead pathogen into the body to build up immunity against a disease...