Five kingdom classification was proposed by_____________?
Correct answer: C. Robert Whittaker
- A. Carlous Linnaeus
- B. E-Chatton
- C. Robert Whittaker
- D. Lynn Margulis and Karlene Schwartz
Explanation
Robert Whittaker proposed the five-kingdom classification in 1969, separating organisms according to cell type, body organisation and mode of nutrition. Linnaeus developed an earlier hierarchical system, while Chatton introduced the prokaryote-eukaryote distinction. Students may choose Margulis and Schwartz because they later modified and developed kingdom classifications, but they did not originate Whittaker's five-kingdom system.
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About Prokaryotic and Eukaryotic Cells
Prokaryotic cells lack a membrane-bound nucleus and complex membrane-bound organelles, whereas eukaryotic cells contain a nucleus, specialized organelles and a cytoskeleton. Comparisons include DNA organization, ribosomes, cell walls, size, division and examples such as bacteria, archaea, protists, fungi, plants and animals.
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