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Elza [17]
3 years ago
10

PLEASE HELP ME!!!!!!!!!!!!!!!!!!!!

Biology
1 answer:
snow_lady [41]3 years ago
5 0

Answer:

A.)

Genetic differences permitted some mosquitoes to become immune to DDT.

Explanation:

DDT-resistant mosquitoes were first detected in India in 1959, and they have increased so rapidly that when a local spray program is begun now, most mosquitoes become resistant in a matter of months rather than years.

Hope this helps you out : )

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