w2env - Laboratory 2: Population Biology and Ecological...

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Laboratory 2: Population Biology and Ecological Footprint 1. Make a hypothesis about how you think the two species of Paramecium will grow alone and how they will grow when they are grown together. - Paramecium growing alone would grow just fine, until reaching a saturation point, where the total population would become constant. There will be interspecific competition. Over time, one of the species will prove to be the better competitor, and soon your culture will be mainly this species and not so much of the other. This is a demonstration of "Gause's Competitive Exclusion Principle" -- two populations don't occupy the same niche in the same ecosystem at the same time. 2. Explain how you tested your hypothesis. - I filled on test tube with the Caudatum paramecium, another test tube with Aurelia paramecium, and the 3rd test tube contained both parameciums. Each test tube was tested every 2 days by using wet mount slides. 3. On what day did the Paramecium caudatum population reach the carrying
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w2env - Laboratory 2: Population Biology and Ecological...

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