Refer to the Graph Below Showing One of the Results

Multiple Choice

Refer to the graph below showing one of the results from G.F.Gause's classic competition experiment on three species of Paramecium.Both of these species, P.aurelia and P.caudatum, feed on floating bacteria. Which statement best describes the relationship between the two species?

A) They are equal competitors.
B) They show competitive exclusion, with P. caudatum going extinct.
C) They show competitive exclusion, with P. aurelia going extinct.
D) They show competitive coexistence, with P. caudatum having greater efficiency.
E) They show competitive coexistence, with P. aurelia having greater efficiency.