Morphological changes in earthworm E. eugeniae exposed to different concentrations of chlorpyrifos, cypermethrin and their combination (A–L). A: Control and B: 0.112 μg/cm2, C: 0.196 μg/cm2, D: 0.224 μg/cm2 concentrations of chlorpyrifos; E: Control and F: 0.0168 μg/cm2, G: 0.0279 μg/cm2, H: 0.0391 μg/cm2 concentrations of cypermethrin and I: Control and J: 0.055 μg/cm2 K: 0.075 μg/cm2 L: 0.095 μg/cm2 concentrations of their combination (chlorpyrifos + cypermethrin). WBC: Whole Body Coiling, BC: Body Constriction, FB: Fragmentation of Body, TB: Thinning of Body, CS: Clitellar Shrinkage, BC: Body coiling.