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the region of the kidney where the renal artery enters, and where the renal vein and the ureter leave the kidney.
the splitting of water molecules into oxygen atoms and energy-rich hydrogen atoms to be used in...
simple inorganic chemical substances (mineral salts) that are needed in relatively large amounts...
neurons that have two outgrowths coming directly from the cell body.
the neurons that link motor and sensory neurons within the central nervous system.