Mosquitoes can develop resistance to DDT through a process called natural selection, which is when certain traits become more common in a population because they help individuals survive better. In this case, some mosquitoes might have had a genetic mutation that made them less affected by DDT. When DDT was used, the mosquitoes that were not killed by it survived and reproduced, passing on their resistant traits to their offspring. Over time, this led to a population of mosquitoes that were mostly resistant to DDT, making the insecticide less effective.
Mosquitoes can carry and transmit many diseases to humans. The insecticide DDT was heavily used to reduce mosquito populations. However, mosquito populations developed a resistance to DDT. This made DDT less effective.
In 3–5 sentences, describe how mosquitoes may have develop this resistance to DDT. Make sure to define natural selection in your answer and how it relates to this situation. Make your answer simple, coherent, and intended for 9th grade
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