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 There are two major varieties of peppered moths, a light-colored variety and a dark-colored variety. These moths are active at night and rest on trees.

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Presentation on theme: " There are two major varieties of peppered moths, a light-colored variety and a dark-colored variety. These moths are active at night and rest on trees."— Presentation transcript:

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2  There are two major varieties of peppered moths, a light-colored variety and a dark-colored variety. These moths are active at night and rest on trees during the day.  1. Does the environment effect which kind of peppered moth is more abundant?

3 There are actually two in this picture!

4  1. Does the environment determine which moth is more abundant? 2. Why does this environment favor the white moth?

5  The following is fictional data collected over a ten year span by scientists. Moth typeYear 1 Year 2 Year 3 Year 4 Year 5 Year 6 Year 7 Year 8 Year 9 Year 10 Light colored moths 6636025654904443892971789946 Dark colored moths 72147211298376423499558641714 3. What conclusions could we make using this data?

6 Charts and Graphs!

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8 Answer: A line graph.

9  6. What environmental factor determined which moth was more abundant?  7. What things could change this environmental factor?  8. Does this change cause a change in the species?  9. Is that evolution?


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