Protozon
Which of the following is not true of protozoa?

Lack cell wall
Produce no sporebearing structures
Form active feeding forms called trophozoites
Comprise the microbial population known as phytoplankton

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Protozon
Saprozoic nutrition is characterized by

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

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

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

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