In Amoeba and Paramecium osmoregulation occurs through

Explanation

In both Amoeba and Paramecium, osmoregulation occurs through a specialized organelle called the contractile vacuole. The contractile vacuole is responsible for regulating the water content and maintaining the osmotic balance within these single-celled organisms. As they live in aquatic environments, water constantly moves into their cells by osmosis, and the contractile vacuole helps them remove excess water to prevent bursting or lysing.