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Concentration-effect curve comparing the effect of toluene on the crawling speed of wild-type (N2) and two ethanol-resistant mutant strains, slo-1(eg142) and rab-3(js49). Shown are averages (± SEM) for the speed of each strain at a particular concentration of toluene relative to the untreated speed for that strain. Speeds were determined over a 2-minute period immediately following a 10-minute exposure to particular concentrations of toluene (N = 4 trials of 10 animals per trial).
