A) 1-2 days
B) 2- 8 days
C) 1- 2 weeks
D) 2- 3 weeks
Correct Answer: C
Solution :
The skin cells and epithelial cells lining the respiratory and digestive tracts are rapidly replaced. The turn-over time for skin cells is 1-2 weeks and for intestinal cells is only 2 or 3 days.
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