mwahyydbigsia mwahyydbigsia
  • 03-05-2017
  • Biology
contestada

In the beginning, the environment was free of air pollution and the light colored moths were more prevalent in the forest against the light colored trees. however, as air pollution started to increase, black colored moths were more prevalent in the forest.

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donaldfleming39
donaldfleming39 donaldfleming39
  • 10-05-2017
That is because we have more pollution than we did back then
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