Definition
A 'biflagellate' organism possesses two flagella. Flagella are whip-like appendages used for movement. These organisms are typically single-celled, like certain types of algae or bacteria. The two flagella can work together or independently to propel the cell. 'Bi-' means 'two,' and 'flagellate' refers to having flagella. Think of it like having two tiny propellers helping the cell swim. Not all single-celled organisms have flagella, and those that do might have only one or many.