A) near the trailing end
B) near the advancing end
C) at the middle of the body
D) any where inside the body
Correct Answer: A
Solution :
Contractile vacuole in Amoeba is concerned with osmoregulation i.e., removal of excess of water. It is present in the endoplasm of Amoeba in the posterior part (near the trailing end) seen as a clear single rounded and pulsating vacuole. Contractile vacuole is a characteristic of only freshwater forms. It is absent in marine and parasitic forms.
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