FIG. 4.

Regeneration is generally unaffected by toxicant exposure. Effects of the various chemicals on regeneration were quantified by the population blastema growth rate over days 4–7, normalized by the worm width squared, (γ), and the percent of worms with 0, 1, or 2 eyes at day 7 for: A–C, DMSO (n = 15, 20, and 19) and permethrin (n = 12, 22, and 9), D–F, chlorpyrifos (n = 19, 31, 34) and dichlorvos (n = 12, 20, and 11), G and H, ethanol (n = 20, 24, and 11) and methanol (n = 11, 12, and 24), J and K, SDS (n = 12, 12, and 10) and TritonX-100 (n = 12, 11, and 10), and M and N, acrylamide (n = 20, 20, and 10) and glucose (n = 18, 20, and 12) compared with controls (n = 58). Error bars represent the 99% confidence intervals of the fit. *Denotes the confidence intervals do not overlap with those of controls.