Question

fill in the blank question
the short hair - like extensions shown here which function to move substances across the
surface of a cell are called

steve gschmeissner/science photo library/science source
steve gschmeissner/science photo library/science source
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Explanation:

In cell biology, the short, hair - like extensions on the cell surface that are responsible for moving substances across the cell surface are known as cilia. These structures have a specific function in cell - surface transport and are distinct from other cell - surface structures like flagella (which are usually longer and have a different function related to cell movement rather than substance movement across the cell surface).

Answer:

cilia