Which of the following best describes cilia?

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Multiple Choice

Which of the following best describes cilia?

Explanation:
Cilia are hair-like extensions on cell surfaces that beat in coordinated waves to move mucus, fluids, or debris across the cell surface. This movement helps keep tissues clear and protected, especially in passages like the airways. They aren’t a snake-like motion of the whole cell, they aren’t a stage where bacteria grow, and they aren’t a bodily condition or reaction. So describing cilia as hair-like extensions on cells for movement captures their true function.

Cilia are hair-like extensions on cell surfaces that beat in coordinated waves to move mucus, fluids, or debris across the cell surface. This movement helps keep tissues clear and protected, especially in passages like the airways. They aren’t a snake-like motion of the whole cell, they aren’t a stage where bacteria grow, and they aren’t a bodily condition or reaction. So describing cilia as hair-like extensions on cells for movement captures their true function.

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