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Basics of Biology

Classification of Life

How has the classification of organisms changed throughout history?

A long list of scientists exists who have tried to classify organisms, and even today, not one single classification system has been agreed upon. Initially, from Aristotle (384–322 B.C.E.) to Carolus Linnaeus, scientists who proposed the earliest classification systems divided living organisms into two kingdoms—plants and animals. The following lists some of the other highlights of classification:



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