Euglena gracilis is a freshwater species of single-celled alga in the genus Euglena. It has secondary chloroplasts, and is a mixotroph able to feed by photosynthesis or phagocytosis. It has a highly flexible cell surface, allowing it to change shape from a thin cell up to 100 µm long, to a sphere of approximately 20 µm.
Euglena gracilis is a freshwater species of single-celled alga in the genus Euglena. It possesses secondary chloroplasts, and is a mixotroph capable of feeding through photosynthesis or phagocytosis. It has an adaptable cell surface, enabling it to transform from a thin cell up to 100 µm long into a sphere approximately 20 µm in diameter.