Why are the classification systems changing every now and then?
Explanation With the advancement of technologies, the studies can be conducted on an intense level, which also is the reason for the discovery of new features. Thus, the classification system is updated every now and then for a better understanding of the organisms. Evolution is a continuous process that occurs in nature. It is a major factor that has a great influence on the organism and the classification system. The classification system contains the features which have been discovered, but the new features developed later or left undiscovered are necessary to be added to the classification system. Final Answer The reason for changing the classification system every now and then can be due to three significant reasons: The environment is an important factor that affects the morphology and physiology of the organisms. This environment, specifically termed habitat of the organism, keeps changing because of humans' various activities or natural calamities. This will induce variation in the organisms; hence the classification system will also change due to the addition of new features. Earlier, the scientists had simpler ways of grouping the organisms majorly based on the morphology. With the development of the techniques, such as molecular phylogeny, scientists are able to study organisms extensively, which changes the views of scientists. Therefore, the system of classification must also be revised. There are still a number of species undiscovered. The discovery of new species introduces unusual features that may be present in discovered organisms but were inconspicuous. These features are taken into consideration and added to the modified classification systems.