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When they were first sold, aerosol insecticides were highly effective in killing flies and mosquitoes. Today, many years later, a much smaller proportion of these insects die when sprayed. The reason fewer insects are being killed is that: O many mosquitoes today are descendants of mosquitoes with insecticide-resistant characteristics O mosquitoes that survive spraying develop an immunity to the insecticide none of the items listed

When they were first sold, aerosol insecticides were highly effective in killing flies and mosquitoes. Today, many years later, a much smaller proportion of these insects die when sprayed. The reason fewer insects are being killed is that: O many mosquitoes today are descendants of mosquitoes with insecticide-resistant characteristics O mosquitoes that survive spraying develop an immunity to the insecticide none of the items listed

Applications and Investigations in Earth Science (9th Edition)
Applications and Investigations in Earth Science (9th Edition)
9th Edition
ISBN:9780134746241
Author:Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. Tasa
Publisher:Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. Tasa
Chapter1: The Study Of Minerals
Section: Chapter Questions
Problem 1LR
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When they were first sold, aerosol insecticides were highly effective in killing flies and mosquitoes. Today, many years later, a much smaller proportion of these insects die when sprayed. The reason fewer insects are being killed is that: many mosquitoes today are descendants of mosquitoes with insecticide-resistant characteristics mosquitoes that survive spraying develop an immunity to the insecticide none of the items listed mosquitoes are deliberately adapting themselves to this man-made change in the environment the original spraying has caused a permanent mutation, giving the insects genetic resistance to the e spray
Transcribed Image Text:When they were first sold, aerosol insecticides were highly effective in killing flies and mosquitoes. Today, many years later, a much smaller proportion of these insects die when sprayed. The reason fewer insects are being killed is that: many mosquitoes today are descendants of mosquitoes with insecticide-resistant characteristics mosquitoes that survive spraying develop an immunity to the insecticide none of the items listed mosquitoes are deliberately adapting themselves to this man-made change in the environment the original spraying has caused a permanent mutation, giving the insects genetic resistance to the e spray
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