Explain by giving three reasons,how the work done by earlier scientists with respect to classification is helpful to the present generation.

(N/A) The work done by earlier scientists or their theories is useful even for students of this generation for the following reasons:
$(i)$ The basic need for classifying organisms is to bring about order and organization in the study of biodiversity.
$(ii)$ Classification helps in understanding the evolutionary relationships between different organisms.
$(iii)$ Classification has predictive value. By placing an organism in a specific category based on its external morphology,we can predict its internal structure and characteristics based on the established knowledge of that group.