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Table 2 Life table depicting survival of D. melanogaster in media with 0.6 mg/L NaF

From: Effects of sodium fluoride and Ocimum sanctum extract on the lifespan and climbing ability of Drosophila melanogaster

Age interval (in days) Number surviving at the beginning of age interval (nx) Number dying during the age interval x to x+1 (dx) Age-specific mortality rate (qx) Average number of days lived by flies x to x+1 (lx)
0-7 60 10 16.6 55
7-14 50 23 46 38.5
14-21 27 18 66.6 18
21-28 9 9 100 4.5
28-35 0 0 0 0