Multiple choice

Which of the following does not form the basis of five-kingdom classification?

  1. Cell structure

  2. Body organization

  3. Mode of nutrition

  4. Habitat
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Whittaker's five-kingdom classification is based on: (1) Cell structure (prokaryotic/eukaryotic), (2) Body organization (unicellular/multicellular), and (3) Mode of nutrition (autotrophic/heterotrophic). Habitat (aquatic/terrestrial) is NOT a criterion for kingdom-level classification.

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