It's helps to identify the characteristics of living organisms and also understanding the diversity of living organisms.
It's helps to understand the features and similarities and difference between the species also we can understand how they are classified into different categories.
It's important to understand inter-relationship between different group of organisms.
There were millions of species,grouping them helps to study them more faster and easier.
It helps know the evolutionary relationship between the organisms.
Based on the system of classification, living organisms are classifies into two kingdom called Animalia and Plantae also they have sub classes for differentiate species with their similarities and differences.