Question

contratile vaculoes takes part in
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Answer 1

$\huge \purple A \purple N \purple s \purple W \purple e \purple \R :-$

• Contractile vacuole, regulatory organelle, usually spherical, found in freshwater protozoa and lower metazoans, such as sponges and hydras, that collects excess fluid from the protoplasm and periodically empties it into the surrounding medium. ... It may also excrete nitrogenous wastes

Answer 2

Answer:

Osmoregulation of the organisms.. they contract or expand to change the relative volume occupied by cytoplasm and hence affect its concentration of salts and water.. Follow and mark brainliest plis.