Figure 1. Survival 24 hours after exposure to DDT in (a) Kisumu (sensitive) and (b) ZAN/U (resistant) mosquitoes.
In both panels survival is shown as a function of age at exposure. The error bars show the 95% confidence intervals. Dotted lines link mosquitoes from different treatment groups exposed at the same age. Note that the time of exposure differed between the two colonies: The Kisumu mosquitoes were exposed for 40 minutes; the ZAN/U mosquitoes were exposed for 100 minutes.
