Need for classification
There are millions of plants and animals varying greatly in their form, structure and complexity. It is impossible to study all of them individually. To make the study of organisms possible and easier, scientists have divided organisms into different ranks of categories on the basis of similarities and differences. Thus, inspite of great diversity amongst organisms, they have been arranged in very systematic manner and this arrangement has made it possible to know details about each group of plants and animals. By looking at their category or group, we can have a fair idea about the characters of hundreds of individuals placed in that category. As we go up in the category the number of common characters goes on decreasing. It is just like systematically arranged library where we can easily find out the required book, in the same way, if the organisms are arranged according to a system, it makes their study easy.
Some important needs are
- it is essential to understand the inter-relationship among different groups of organisms.
- It serves as a base of the development of other biological sciences like biogeography.
- Various applied biology fields also depend upon exact identification and
