With which philosopher does the history of classification of living organisms first begin?

Correct answer: Aristotle

Direct answer: B, Aristotle. Aristotle is commonly regarded in school-level biology as the earliest thinker to make a systematic attempt to classify living organisms. He grouped animals using observable features and separated them broadly into groups such as those with blood and those without blood, according to the knowledge of his time. His system was limited by the absence of modern microscopy, genetics and evolutionary theory, but it marked an important beginning in organized biological classification. A, Linnaeus, came much later and is famous for binomial nomenclature and a formal hierarchical system. C, Theophrastus, made major contributions to the classification and study of plants, but he is not generally identified as the first philosopher beginning the overall history of organism classification in this question. D, Plato, was an important philosopher but is not credited with this foundational biological classification attempt. Memory cue: Aristotle begins the early classification story; Linnaeus later formalized naming and hierarchy.