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round or spherical-shaped bacteria.
(also called heterotrophic organisms) organisms that are not able to produce their own organic...
the U-shaped part of the nephron tubule situated between the proximal and distal convoluted...
the part of the cell that controls all the activities of the cell and plays an important role in...
the seepage of acidic, contaminated water from disused mines and mine dumps.
a drug that inhibits (slows down) the action of the nervous system.