The organelle which eliminates water from the body of a protozoan is the

Assessment: WAEC SSCE - Biology - 2010 (Objective) Subject: Biology

Question 1 Report

The organelle which eliminates water from the body of a protozoan is the
Answer Details
The correct answer is the contractile vacuole. Protozoans are unicellular organisms that live in aquatic environments. The contractile vacuole is a specialized organelle found in protozoans that helps to maintain osmotic balance by collecting and expelling excess water from the cell. The contractile vacuole works by pumping water out of the cell and into the surrounding environment, preventing the protozoan from bursting due to excessive water intake. Therefore, the contractile vacuole plays an important role in maintaining the survival of protozoans in their aquatic habitats.
Read lesson note on Excretory System (WAEC)
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