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the U-shaped part of the nephron tubule situated between the proximal and distal convoluted tubules.
gaps (about 1 micrometre long) that occur between the myelin sheaths generated by consecutive...
the series of activities that takes place in a cell leading to its division and duplication (...
identical strands of a chromosome produced by the doubling of genetic material during cell...
the very cold zone in an ocean, dam or a lake, located below the range of effective light...
the part of the lung where the bronchi, bloodvessels and nerves enter and leave the lungs.