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hard outer supportive skeleton of an animal.
the sequence of events relating to the flow of blood or blood pressure in the heart that occurs...
the cone-shaped region of the renal medulla, made up of the loops of Henlé and the collecting...
the process whereby the products of digestion are transported from the digestive tract into the...
gaps (about 1 micrometre long) that occur between the myelin sheaths generated by consecutive...