The graph above shows the population growth curves of Paramecium aurelia and Paramecium caudatum cultures after they were mixed together. One inference that could correctly be drawn from the graph is that P. aurelia and P. caudatum cannot successfully

(1 point)
• utilize the same wavelengths of light
• utilize oxygen for anaerobic respiration
• occupy the same niche in an ecosystem
• live in marine environments

• occupy the same niche in an ecosystem

This inference can be made because the graph shows that when P. aurelia and P. caudatum cultures were mixed together, the population growth of P. aurelia initially increased while the population growth of P. caudatum decreased. This suggests that the two species are competing for the same resources, indicating that they cannot coexist successfully in the same niche in an ecosystem.