Question
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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