One of the basic mechanisms for evolutionary change is natural selection. Darwin’s grand idea of evolution is considered simple but it is often misunderstood. Natural selection determines the capacity of survival and reproduction of organism. Natural selection means the acquiring and inheritance of certain character that makes an organism to compete better in their wild condition . For example, imagine the population of beetles. Some are green and some are brown. Most of the green beetles are eaten by birds but not brown because of their color. Also, less number of brown offspring are eaten which allows brown beetles to have large number of offspring and lastly they become more common in population.
Industrial Melanin
It is a classic example of natural selection operating as a result of human activity. Industrial melanism is the phenomena by which various species of moths have undergone genetic modification. Body color was an action in response to the darkening of their natural habitat. It is due to the production of air pollutant such as soot, associated with the industrial revolution. This phenomena has been observed in more than 70 species of moths in England and over 100 species in U.S.
Industrial Melanin
It is a classic example of natural selection operating as a result of human activity. Industrial melanism is the phenomena by which various species of moths have undergone genetic modification. Body color was an action in response to the darkening of their natural habitat. It is due to the production of air pollutant such as soot, associated with the industrial revolution. This phenomena has been observed in more than 70 species of moths in England and over 100 species in U.S.
No comments:
Post a Comment