What is the niche for euglena amoeba paramecium?

Euglena, amoeba, and paramecium occupy different ecological niches in aquatic environments. Euglena are photosynthetic protists that thrive in nutrient-rich waters, utilizing sunlight for energy while also feeding on organic matter. Amoebas are versatile, often found in soil and water, where they feed on bacteria and detritus through phagocytosis. Paramecium, ciliated protozoans, inhabit freshwater environments and primarily feed on bacteria and small particles by using their cilia to create water currents for feeding.