Protozon
Protozoa have several types of vacuoles.The function of a contractile vacuole is to

maintain osmotic balance by continuous water expulsion
contain specific enzymes that perform various functions
have sites for photosynthesis
creates sites of food digestion

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Protozon
Saprozoic nutrition is characterized by

phagocytosis of solid nutrients and subsequent formation of phagocytic vacuoles
pinocytosis of soluble nutrients and subsequent formation of phagocytic vacuoles
pinocytosis of solid nutrients and subsequent formation of phagocytic vacuoles
encystment of solid nutrients and subsequent formation of secretory vacuoles

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Protozon
Which of the following describes the function of a secretory vacuole?

Structures that accept male gametes during sexual reproduction
Sites of food digestion
Maintain osmotic balance by continuous water expulsion
Contain specific enzymes that perform various functions

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