Figure 3From: Immune response to sympatric and allopatric parasites in a snail-trematode interactionMean hemocyte count (1 s.e.) in 0.1 μl hemolymph of the snail host P. antipodarum in relation to parasite source, host source, and dose of parasite: (a) low dose, and (b) high dose. Vertical standard error bars were estimated from the mean squared error in the ANOVA in Table 3Back to article page