Protozon
Members of which phylum of Protozoa are being considered as biological control agents for certain insects?

Apicomplexa
Microspora
Sarcomastigophora
all of these

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

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

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