4 Answers
There are millions of species on this earth. For anybody, it is impossible to study about each of them in his lifetime. Classification makes it easy to study the organisms; on the basis of certain common characters.
We have to classify organisms because in our surrounding millions of organisms are there. Each organism is different from all others to a lesser or greater extent.
There are millions of species on this earth. So, it is harder to study therm one by one . Therefore, we look for similarities among them different classess as a whole. Classification makes our study easier.
There is vast number of living organisms in this biosphere and they have a great diversity in shape, size and forms. It is practically not possible to examine and study every organism at individual level. It is, therefore, advisable to study the diversty of organism by classifying them in orderly manner.