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Total Questions : 21 | Page 3 of 3 pages
Question 21. Protozoa have several types of vacuoles.The function of a contractile vacuole is to
  1.    creates sites of food digestion
  2.    contain specific enzymes that perform various functions
  3.    maintain osmotic balance by continuous water expulsion
  4.    have sites for photosynthesis
 Discuss Question
Answer: Option C. -> maintain osmotic balance by continuous water expulsion

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