Why is it important to classify the diversity of living things?

Answer 1

Classification taxonomy, is important to Biology and the diversity of living thing for a number or reasons. Establishing relationships between extant organisms allows us to construct phylogenes which help us to understand their evolutionary history; this knowledge is invaluable right across the board from Paleontology (tracing changes of anatomy in fossils), to genetic engineering (whether a gene from one organism is likely to function in another), to medicine (which species a given virus is likely to spread between), to development (whether a gene from one structure are the same that form a homologous one, i.e. fins/legs/wings), to conservation (investigating previous extinctions, establishing the diversity of animals under threat), to immunology (whether a transplanted organ will be accepted/rejected).

Answer 2

to help them organize organisms in a logical order so they can more easily study them. :)