Answers

2015-01-17T22:59:06+05:30
When cells at the root of the nail grow, the new nail cells push out the old nail cells.
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The Brainliest Answer!
2015-01-17T23:03:18+05:30

Cells keep increasing always, same way the cell at the root of our nail, keep increasing everyday pushing out the old cells further, leading to a growth in length of the nail.
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