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Natural Selection and the Peppered Moth

Peppered moths on tree barkIn this minds-on analysis and discussion activity, students interpret evidence concerning natural selection in the peppered moth. The evidence includes (1) the genetic basis for the different color forms of peppered moths, (2) mortality differences between the color forms in different environments, and (3) a history of correlated changes in the environment and the proportion of moths with each color form.

This activity will help students to consolidate a scientifically accurate understanding of the process of natural selection. 

(This activity is very similar to the last section of the hands-on activity Evolution by Natural Selection.)

The Student Handout is available in the first two attached files and as a Google doc designed for use in online instruction and distance learning. (For additional instructions, see https://serendipstudio.org/exchange/bioactivities/Googledocs, especially item 7.) The Teacher Notes, available in the last two attached files, provide instructional suggestions and background information and explain how this activity is aligned with the Next Generation Science Standards.

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NaturalSelection moth SH.docx1.23 MB
NaturalSelection moth SH.pdf213.81 KB
NaturalSelection Moth TN.docx38.99 KB
NaturalSelection Moth TN.pdf146.59 KB
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iwaldron's picture

2022 revision

Submitted by iwaldron on Sat, 03/12/2022 - 9:42am.

The Student Handout has been revised and reorganized to improve logical flow, clarity and student understanding of natural selection.

Ingrid

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This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License. To preserve the value of these learning activities for other teachers, please do not post keys for any questions from any of these activities!

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Authors

Dr. Ingrid Waldron is Professor Emerita in the Biology Department at the University of Pennsylvania. Co-authors include Dr. Jennifer Doherty, who is an Assistant Professor in the Physiology Department at Michigan State University, and Dr. Lori Spindler, who is a Lecturer in the Biology Department at the University of Pennsylvania. They have developed these activities in collaboration with colleagues at Penn and middle school and high school teachers in the Philadelphia area. We are grateful to Craig Douglas for his generous help with graphics.

 

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