Explain the term biological classification?

In the biology class, one of the student named Atul asked the importance of biological classification. The biology teacher explained that it was required by the taxonomists for the better understanding of living world in systematic and simplest manner.
(i) Explain the term biological classification. (ii) What is its need?
(iii) What are the objectives of biological classification? (iv) What are the values shown by Atul?

(i) Biological classification is the scientific procedure of arranging organisms into groups and sub-groups on the basis of their similarities and dissimilarities and placing the groups in a hierarchy of categories.
(ii) Biological classification is helpful to collect sufficient information about the essential features of the group by studying one or two organisms. It also helps in knowing the relationship amongst different groups of organisms.
(iii) The objectives of biological classification are, to describe and identify all the possible types of species and to arrange the species in various categories on the basis of their similarities and dissimilarities.