Which organisms possess a contractile vacuole | vedclass

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Question

(A) The contractile vacuole is a specialized organelle found primarily in freshwater protozoans like $Amoeba$ and $Paramecium$.
Since these organisms

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Freshwater protozoans

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(A) The contractile vacuole is a specialized organelle found primarily in freshwater protozoans like $Amoeba$ and $Paramecium$.
Since these organisms live in a hypotonic environment (freshwater),water constantly enters their body through osmosis.
The contractile vacuole collects this excess water and expels it from the cell to maintain internal osmotic pressure,a process known as osmoregulation.
Marine and parasitic protozoans generally live in isotonic environments,so they do not require a contractile vacuole for this purpose.

Which organisms possess a contractile vacuole as a specialized organelle for osmoregulation?

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