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B
Holozoic
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C
Saprophytic
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D
Saprozoic
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Solution
The correct option is B Holozoic Holozoic unicellular organisms are those which can engulf the whole organism. Protozoans like, Paramecium form an invagination around the whole organism like bacteria and then form a small vesicle. This vesicle is then taken inside the cell and then vesicle is broken down to release the whole organism. Such whole organism is utilized by protozoans as their food. The invaginations are formed by protozoans by forming pseudopodia.