Chronic, lifelong exposure to EtBr does not affect steady-state ATP levels throughout the nematode lifespan (2 way ANOVA, main effect of time (p<0.0001), but not EtBr (p=0.53), or their interaction (p=0.93)). Time, on the x-axis, refers to both nematode age and the length of the EtBr exposure. Relative luminescence is a surrogate measure of in vivo steady-state ATP levels. N=2. Bars ± SEM.