Figure 3: Scatter diagrams showing correlations between area and the number of ingested erythrocytes with respect to interaction time. There is a direct and significant relation ( ) for both strains, meaning that the larger is the area of the amoeba, these engulf more erythrocytes. This ratio increases as time passes. The same trend for both strains was observed; however, correlations were higher for E. histolytica (“ ” value).