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Question

6ad-0eb2e738dbef/tool/47415ccd-db8e-4891-9255-efe9226e1078/Showlten?returnView-&studentit l of Evolution (New York Times, 2/5/2015) Which of the following led to the greatest decline of bedbug populations in the mid twentieth century? Highly improved laundenng soaps. The use of pesticides, namely DDT. The increased use of running water in homes The use of washing machines. O O Submit PartB Which of the following does current research most support? The common bedbug lived with bats first, then humans. The common bedbug lived with humans first, then bats The common bedbug has only been known to live with humans The common bedbug did not live with bats and humans at concurrent times Submit acer

Explanation / Answer

1.The greatest decline of bedbug population in mid-twentieth century contributed to the use of pesticides namely DDT.

So, option B is correct.

*It was because after a ban on the use of DDT, these bedbugs started appearing again.

2.The current research most support that these common bedbugs lived with bats first and then humans.

So, option A is correct

* It has been known that these bedbugs originated in middle eastern caves that were inhabited by both humans and bats.But it has been suggested that they parasitized bats first and then moved on to humans.

Hope it explains your query, Good luck !!!!

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