In the absence of competition, P. aurelia grew better than P. caudatum. Every day there were more P. aurelia than P. caudatum. 12) Did populations of mixed Parameciumgrow faster, slower, or at the same rate as species raised separately? The populations of mixed Paramecium grew at a slower rate than the species that were raised separately.
13) On day 2, how much larger was the mix population compared to the single species populations? On day two the single population of P. aurelia was 10 compared to the mixed population of P. aurelia which was 6. On the same day the single population of P. caudatum was 12 compared to the mix population of 10. The mixed populations were always smaller than the single populations.
14) On day 12, how many P. aurelia remained in the mixed population? On day 12, 92 P. aurelia were left in the mixed population
15) What happened to P. caudatumin the mixed population on day 14?On day 14, the P. caudatumdied out completely.
16) What can we conclude about P. caudatumfrom this experiment? (choose from the following)
a) in mixed populations, this species is a better competitor than P. aurelia
b) in mixed populations, this species is a worse competitor than P. aurelia
c) there is no difference in the competitive ability of the two Paramecium species
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