The data that is attached below was collected during a lettuce seed ecotoxicity assay. Lettuce seed assays are used to compare the ecotoxicity of methanol, ethanol, and isopropanol by these alcohols' effects on germination rate and root elongination. Using the attached data, help answer which alcohol seems to be the most toxic to lettuce seeds. Why or why not would your results be expected? What does this information tell you about using ecotoxicity data to estimate human toxicity?

Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
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The data that is attached below was collected during a lettuce seed ecotoxicity assay. Lettuce seed assays are used to compare the ecotoxicity of methanol, ethanol, and isopropanol by these alcohols' effects on germination rate and root elongination. Using the attached data, help answer which alcohol seems to be the most toxic to lettuce seeds. Why or why not would your results be expected? What does this information tell you about using ecotoxicity data to estimate human toxicity?

Methanol concentration
petri dish
Table 1 - Germination (%)
Table 2 - Mean root length (mm)
Ethanol concentration
petri dish
Table 1 - Germination (%)
Table 2 - Mean root length (mm)
Isopropanol concentration
petri dish
Table 1 - Germination (%)
Table 2 - Mean root length (mm)
0%
1
94
15
0%
1
98
16
0%
1
96
16
0.60%
2
83
11|
0.60%
2
31
8.8
0.60%
2
79
10
1.30%
3
71
7.1
1.30%
3
17
3.1
1.30%
3
71
5.6
2.50%
4
62
3.8
2.50%
4
6
2.1
2.50%
4
63
3.2
5%
5
22
1.2
5%
5
0
5%
5
0.9
0.1
10%
6
0
0
10%
6
0
0
10%
6
0
0
Transcribed Image Text:Methanol concentration petri dish Table 1 - Germination (%) Table 2 - Mean root length (mm) Ethanol concentration petri dish Table 1 - Germination (%) Table 2 - Mean root length (mm) Isopropanol concentration petri dish Table 1 - Germination (%) Table 2 - Mean root length (mm) 0% 1 94 15 0% 1 98 16 0% 1 96 16 0.60% 2 83 11| 0.60% 2 31 8.8 0.60% 2 79 10 1.30% 3 71 7.1 1.30% 3 17 3.1 1.30% 3 71 5.6 2.50% 4 62 3.8 2.50% 4 6 2.1 2.50% 4 63 3.2 5% 5 22 1.2 5% 5 0 5% 5 0.9 0.1 10% 6 0 0 10% 6 0 0 10% 6 0 0
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