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  _____      ___     _    _     _____    _    _   
 /  ___||   / _ \\  | \  / ||  |  ___|| | \  / || 
| // __    | / \ || |  \/  ||  | ||__   |  \/  || 
| \\_\ ||  | \_/ || | .  . ||  | ||__   | .  . || 
 \____//    \___//  |_|\/|_||  |_____|| |_|\/|_|| 
  `---`     `---`   `-`  `-`   `-----`  `-`  `-`

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Text this: Activity of contractile vacuole in the parasitic ciliate, Balantidium coli