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Fig. 2. Mean change in (A) the number of midline crossings, (B) the number of
feeding bites, (C) the latency to first feed and (D) the time spent under
shelter before and after stimulus for different cadmium (Cd) exposures
(N=16 for each group). * represents a significant difference from the
DDW (distilled deionized water) control (P<0.05).
represents a significant difference from the skin extract
control (P<0.05); ** represents a significant difference from the
DDW control (P=0.001) using an unpaired t-test only.