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disease caused when the arteries that supply the heart muscle become narrowed or blocked by the build-up of cholesterol and fatty deposits on their inner walls. It can lead to angina or a heart attack.
secretory tissue in the leaves of plants that secretes water through pores in the epidermis or...
the tube through which urine passes from the bladder to the exterior.
the formation of layers of water of different temperatures in large bodies of water - dams,...
the cone-shaped region of the renal medulla, made up of the loops of Henlé and the collecting...