Which statement correctly interprets the graph? 
A. Paramecium caudatum and Paramecium aurelia are able to compete for the same resource and their population densities are not affected.
B. Paramecium aurelia drives Paramecium caudatum to near extinction.
C. Paramecium caudatum and Paramecium aurelia are unable to exist and both populations go extinct after 24 days.
D. Paramecium caudatum drives Paramecium aurelia to near extinction.
Answer: D
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