Lab 8- Population Biology - Growth & Competition

Student: kayla martin Apply what you have learned: What happened to the populations when both species of Paramecium were grown together in a mixed culture? Both populations initially increased, but then P. aurelia thrived and P. caudatum died out. The results obtained when P. caudatum and P. aurelia were grown together in a mixed culture demonstrate what concept of population biology? Competitive exclusion Select all of the following that are true about Paramecium aurelia . Better competitor than P. caudatum for limited resources. Exhibits logistic growth after reaching carrying capacity. Collected Lab Data Population density Day P. caudatum grown alone (cells/mL) P. aurelia grown alone (cells/mL) P. caudatum grown in mixed culture (cells/mL) P. aurelia grown in mixed culture (cells/mL) 0 2 2 2 2 2 8 10 14 10 4 30 52 22 34 6 48 80 18 62 8 56 98 14 78 10 60 100 6 88