4 Principles of Natural Selection

4 Principles of Natural Selection

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  • As the Industrial Revolution came up, not only did it bring new machinery ideas like factories, along with it came pollution, dirt, long smoke & much more. These drastic changes affected the air which hurts humans ,animals & their environments. 
  • Moths are mostly found in two colors, a dark drown & a light tan which shows  the different type of genetic variation around.
  • With the Industrial Revolution, moths tried to adapt in order to survive so moths became darker to camouflage into trees. Tan moths are now visible from a distance.
  • Tan moths were now easily spotten & eaten at a faster while darker moths blended in & reproduced giving their offspring their beneficial traits. 
  • Since the industrial revolution affected the moths original gene pool , it changed drastically, now the majority of the moths are brown since they were able to reproduce more and they survive longer.
  • To conclude, Natural Selection is  among moths, the darker moths blend in with the darker environment and they survive longer and they reproduce in a greater number. 
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