Asan Mcqs - Solved Original Papers, General Knowledge, Pakistan Current Affairs MCQs for JOBS Biology Mcqs Freshwater protozoans pumped out excess water by a special structure called;

Freshwater protozoans pumped out excess water by a special structure called;

A. Oral groove
B. Contractile vacuole
C. Pellicle
D. Vacuole

Submitted by: Sanobar Khan

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