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Lesson summary for:
Evo in the news: Bed bugs bite back thanks to evolution

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Overview:
This news brief of September 2010 examines the resurgence of bed bugs throughout the country, and the real bad news is that those bed bugs have evolved resistance to the chemicals most commonly used for eradication.

Author/Source:
UC Museum of Paleontology

Grade level:
9-12

Time:
15 minutes

Teaching tips:
This article encourages students to reason about scientific data. It includes a set of discussion and extension questions for use in class, as well as a video podcast. It also includes hints about related lessons that might be used in conjunction with this one. Get more tips for using Evo in the News articles in your classroom.

Concepts:
Correspondence to the Next Generation Science Standards is indicated in parentheses after each relevant concept. See our conceptual framework for details.

  • Evolution results from selection acting upon genetic variation within a population. (LS4.B)

  • Mutations are random.

  • Traits that confer an advantage may persist in the population and are called adaptations. (LS4.B, LS4.C)

  • Inherited characteristics affect the likelihood of an organism's survival and reproduction. (LS4.B, LS4.C)

  • Over time, the proportion of individuals with advantageous characteristics may increase (and the proportion with disadvantageous characteristics may decrease) due to their likelihood of surviving and reproducing. (LS4.B, LS4.C)

  • As with other scientific disciplines, evolutionary biology has applications that factor into everyday life.

  • There is variation within a population. (LS3.B)

Teacher background:

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