Q.
The contractile vacuole is an important site for excretion and it is absent in
1822
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NTA AbhyasNTA Abhyas 2020Biological Classification
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Solution:
A contractile vacuole is involved in osmoregulation. It is majorly found in protists and unicellular algae. Hence, it is present in Euglena, Amoeba and Paramoecium and absent in Plasmodium.