microevolutiondescribe 3 ways in which microevolution can take place and describe the difference between microevolution and marcoevolution.

Microevolution is a process that results in a change in
gene frequency within a population over a relatively short amount of time. It is due to
gene flow, selection, and genetic drift. Common examples include the peppered moth and
bacterial resistance to antibiotics. For example, in pre-industrial revolution England,
there were mainly white peppered moths, with the frequency of black moths approaching 1
percent. Once soot covered the trees in those areas of England, due to factory
smoke, the white moths stood out against the darker trees and due to natural selection,
birds consumed mostly white moths leaving behind the black ones, that blended into the
background. The gene frequency increased for the darker variety and for the white moths,
it decreased. Eventually, due to microevolution, the population became mostly black.
However, when clean air laws were established, the frequency shifted yet again, to white
moths. This is microevolution. A new species doesn't result, however, particular
adaptive traits will increasely occur in the population. Macroevolution on the other
hand, takes place over a geologically longer period of time, where small accumulated
changes result in the formation of a new species. An example of macroevolution is the
Horse. It went from a small dog-sized herbivore and eventually, through mutation and
adaptive radiation, went through the transitional stages of toes to hooves and short
limbs to the long limbs horses possess today. Pressures from a changing environment and
selection for particular mutations resulted in modern day
horses.