Need for classification · NCERT Biology

Early systems of classification were primarily based on:

  1. Advanced DNA sequencing of the organisms
  2. The uses or 'utilities' of various organisms
  3. The evolutionary relationships among species
  4. The microscopic details of cellular structure
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Correct answer: The uses or 'utilities' of various organisms

In early times, humans needed to classify organisms for their basic needs like food, clothing, and shelter. Therefore, the earliest classifications were based on the utility of organisms rather than biological traits.

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