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brennanjb00
11.05.2021 •
Biology
Pesticide resistance is increasing. Farmers in the US lost 7% of their crops to pests in the 1940s, over the 1980s and 1990s, the loss
was 13%, despite more pesticides being used. It is estimated that 500-1000 pests have developed a resistance to pesticides. Consider
the diagram showing the evolution of pesticide resistance. Select ALL of the statements that do NOT accurately describe the
mechanisms of pesticide resistance shown in the graphic.
A)
Insects that are sensitive to the pesticide all die out after the first
application, leaving only the resistant insects in the population.
B)
When insects are exposed to the pesticide, some will develop a mutation
making it resistant. Only these insects survive in the next generation
The first generation has an insect with a gene responsible for resistance to
a pesticide. This allows it to survive the pesticide application and
reproduce
The insect with the pesticide resistance gene reproduces. Because these
insects are more likely to survive pesticide application, insects with this
trait become more prominent in the population
As a population of insects is exposed to a pesticide, those susceptible to
the pesticide will die out of the population, leaving those with a resistance
to survive and reprodute, becoming more common in the population.
D)
E)
Solved
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Ответ:
The answer is B)