BIOL 114 Duckweed Report.docx

Data and results table 1 shows the number of

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Data and Results Table 1 shows the number of individuals for each manipulation. There was significant growth in each cup after four weeks. Cup C had the highest amount of individuals at one point at 399. In the first week, cup A had the largest amount of growth at 157 individuals. Figure 1 shows the increases and decreases for each manipulation on the observed day and the relationship between algae and duckweed. Algae began to grow in the control cup after one week. Discussion Our data does not strongly reflect our predictions that competition with algae for resources has a negative effect on the reproduction of duckweed. We predicted cup D to have the lowest amount of growth because of the high competition, but instead it had some of the largest numbers of individuals. The experiment did not support our hypothesis that there will be an effect because the results show that algae growth had very little impact on the growth of duckweed. Figure 1 shows the close relationship between each manipulation. Cup D and C had the highest amount of individuals at one point. The leading error in this experiment was the method of counting. The person counting and the strategy for counting the duckweed was inconsistent and led to errors in the actual numbers. Contamination also became a factor of error when there was noticeable amount of algae growth in the control cup A within a week of experimentation.
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Effects of Competition on Growth Table 1. Data collected from each manipulation of the experiment for each corresponding day
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  • Fall '17
  • aquatic plants, Lemna, Lemna major

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