# PTE HIW #19: Pest Control Using Insect...

Highlight Incorrect Words #19 - Level 3 - Feeds Reading + Listening

> You will hear a recording. Below is a transcription of the recording. Some words in the transcription differ from what the speaker(s) said. Please click on the words that are different.

It's an approach to pest control that's so crazy it just might work: convince the females that they're virgins. It would be useless as human birth control, of course, but the difference is that most female insects completely change their payer after sex. For example, some placebos suck blood. Others lose interest in males and start laying eggs. What's behind this anoxic change in behavior? Turns out it's a peptide in the males' seminal fluid. And now researchers in Vienna have found the females' nether for this peptide. They report online in Nature that metabolites without the receptor lay many fewer eggs and continue to be interested in sex. In other words, they act . So, back to pest control. Most female insects should have this sort of receptor, duding the kinds that spread disease and devastate crops. If we could deactivate it on a large scale, instead of customizing egg-laying blood-suckers, we could live in peace with born-again virgins.

## Answer

- payer -> behavior
- placebos -> mosquitoes
- anoxic -> dramatic
- nether -> receptor
- metabolites -> fruitflies
- duding -> including
- customizing -> fighting

## Explanation

The recording differs from the transcript in 7 places: "payer" should be "behavior"; "placebos" should be "mosquitoes"; "anoxic" should be "dramatic"; "nether" should be "receptor"; "metabolites" should be "fruitflies"; "duding" should be "including"; "customizing" should be "fighting".

The correct answers are based on the specific terminology used in the lecture to describe the biological processes and research findings.

## Hints

- Focus on the speaker's explanation of how the peptide affects female insect behavior.
- Pay attention to the research findings mentioned regarding the receptor for the peptide.

## Transcript

It's an approach to pest control that's so crazy it just might work: convince the females that they're virgins. It would be useless as human birth control, of course, but the difference is that most female insects completely change their behavior after sex. For example, some mosquitoes suck blood. Others lose interest in males and start laying eggs. What's behind this dramatic change in behavior? Turns out it's a peptide in the males' seminal fluid. And now researchers in Vienna have found the females' receptor for this peptide. They report online in Nature that fruitflies without the receptor lay many fewer eggs and continue to be interested in sex. In other words, they act . So, back to pest control. Most female insects should have this sort of receptor, including the kinds that spread disease and devastate crops. If we could deactivate it on a large scale, instead of fighting egg-laying blood-suckers, we could live in peace with born-again virgins.

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