In the five-kingdom classification system proposed by Robert Whittaker, which kingdom comprises unicellular prokaryotic organisms such as bacteria?
Answer and explanation
Correct answer: D. Monera
- Step 1: Whittaker classified life into Monera, Protista, Fungi, Plantae, and Animalia.
- Step 2: Kingdom Monera is characterized by unicellular organisms that lack membrane-bound nuclei and membrane-bound organelles (prokaryotes).
Answer
Monera.
Why not the others: 'Protista' contains unicellular and simple multicellular eukaryotes (e.g., amoebae, algae); 'Fungi' contains heterotrophic chitinous eukaryotes; 'Plantae' contains autotrophic multicellular eukaryotes.
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