Fig. 1
From: Characterization of serum complement immune activity in the prairie rattlesnake (Crotalus viridis)
Concentration-dependent hemolysis of sheep red blood cells (SRBCs) by plasma derived from Crotalus viridis. The samples were centrifuged, and the optical densities of the supernatants were measured at 540 nm and expressed as the % maximum as compared to a hemolysis positive control. The results represent the means ± standard deviations for four independent determinations