Young adult stage reached by C elegans after the 3rd larval stage, when exposed or not to MAPbI3 (a) or MASnI3 (b) at increasing concentrations: 50 (orange), 100 (green), and 200 ug/ml (red). All plots show an average of standard deviation (S.D.) using One-way ANOVA test followed by a Tukey-Kramer post-hoc test (non-treated vs. treated conditions), p-value<0.002.