Based on your knowledge and the data in the graph above, what is a benefit of using Bt corn?
More insecticide is used with Bt corn - VCE - SSCE Biology - Question 37 - 2019 - Paper 1
Question 37
Based on your knowledge and the data in the graph above, what is a benefit of using Bt corn?
More insecticide is used with Bt corn.
Bt corn is cheaper to produce tha... show full transcript
Worked Solution & Example Answer:Based on your knowledge and the data in the graph above, what is a benefit of using Bt corn?
More insecticide is used with Bt corn - VCE - SSCE Biology - Question 37 - 2019 - Paper 1
Step 1
More insecticide is used with Bt corn.
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Answer
This statement is misleading. The graph indicates that as Bt corn usage increased, the amount of insecticide applied decreased over time, suggesting that Bt corn reduces the need for additional insecticides.
Step 2
Bt corn is cheaper to produce than non-Bt corn.
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Answer
While the graph does not provide specific cost comparisons, Bt corn is generally considered cost-effective due to reduced insecticide use and potential yield increases from less pest damage.
Step 3
Negative impacts on ecosystems could be reduced.
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Bt corn expresses a protein that acts as an insecticide, which potentially reduces the reliance on synthetic pesticides. This can lead to lower chemical runoff and less harm to non-target species, thereby benefiting the ecosystem.
Step 4
Fewer farmers are predicted to plant Bt corn in the future.
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Answer
This statement is not supported by the graph, which shows a trend of increasing usage of Bt corn over the years. Thus, it's likely that more farmers are adopting Bt corn rather than reducing its usage.
