Figure 1 looks weird. At day 0 the ranges for the bacterias in the evaluated groups (C, G-5, G-10) differ a lot - Is this noise? Why? If i interpret this graphi

Figure 1 looks weird. At day 0 the ranges for the bacterias in the evaluated groups (C, G-5, G-10) differ a lot - Is this noise? Why? If i interpret this graphic right the study did find bacteria changes at lower levels of glyphosate(G-5), but not at higher levels of glyphosate expose (G-10). I am no bee expert but I doubt that bees normally eat sugar syrup all day - which also will contribute to the weird stuff happening in the C-group in comparision from day 0 to 3.