Protozon
Which of the following is not true of protozoa?

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

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Protozon
Holozoic nutrition is characterized by

phagocytosis of soluble nutrients and subsequent formation of phagocytic vacuoles
pinocytosis of solid nutrients and subsequent formation of phagocytic vacuoles
photosynthesis
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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