Microevolution+and+Macroevolution



Microevolution is change in allele frequencies which are from resulting from natural selection, genetic drift, gene flow, and mutation. An example of humans causing this is such as the intentional breeding of different types of dogs into new breeds.

Macroevolution is the large patterns, trends, and rates of change among families and other groups of species. Macroevolution changes along the whole spectrum of life - from one single-celled organism and all the way to human beings.

The similarity between the two of them are that they both involve mutations and natural selection.

http://atheism.about.com/od/evolutionexplained/