What can you infer from this graph?

A. The graph is an example of a density-dependent limiting factor
B. The graph is an example of a density-independent limiting factor
C. The population of P. caudatum decreases while the population of
P. Aurelia increases when they are grown together
D. The graph shows that an increase in population of the protist P. aurelia
causes a decrease in the population of P. caudatum when they are
grown
together.

Yes he thought they should be left to chance why, because he thought that was the best thing to do

Ithink you should go back and learn in school rather then here asking questions