Explain how peppered moths explain micro evolution
In the 1850s, light coloured moths were more common, and as time went on, darker moths increased in frequency in industrial centres until they dominated everywhere
In industrial regions, dark mothers were more common bc birds couldn't find them, and vice versa for light moths
There was an increase in the frequency in the dark allele because it became more advantageous in hiding from birds as time went on.
Kettlewell experimented this by releasing moths into the polluted Birmingham and the unpolluted Dorset and then left traps to see who would survive. In Birmingham, 19% light moths were trapped and 40% dark moths were trapped. The dark moths were trapped whereas most of the light moths probably gotten eaten. In the unpolluted 1.5% light moths and 6% dark; light moths had a better chance of survival
When pollution became more controlled, the moths increasingly became more light coloured, showing changes of allele frequencies of natural populations due to natural selection