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Figure 3


Fig. 3. Whole-body Na+ uptake rate in neonate and adult water flea Daphnia magna after pre-exposure to 1% dimethylsulfoxide (DMSO), in the absence of Cl– (replaced with equimolar gluconate) in the external medium (Gluco) or after pre-exposure to 2,4,6-triaminopyrimidine (TAP, 10–3 mol l–1). Data are expressed as mean ± 1 s.e.m. (N=6). Note the different axis scale for neonate (left) and adult (right) daphnids.