Hybridogenesis, Resistance to Disease, Blood Types, Xenotransplantation . . .

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Originally Posted by offpage

The microtubule-based protrusions of the plasma membrane, also known as flagella (plural: flagellum), are found in nearly all types of cells. Flagellum means "Whip," and they look like wips. Typically, they are employed to push a cell through the liquid. They have a diameter of 10–30 nm and a length of 5–20 m.
https://microbialnotes.com/flagella-...um-an-overview

Flagellum is the singular; flagella is the plural.