Question

The five kingdom classification was proposed by: ____.

• A. Linnaeus
• B. Whittaker
• C. Darwin
• D. Haeckel

Hint:

To remember the chronological expansion of kingdoms, think of the numbers: 2 Kingdoms (Linnaeus) $\rightarrow$ 3 Kingdoms (Haeckel) $\rightarrow$ 5 Kingdoms (Whittaker).

Answer 1

The Correct Option is B

Step 1: Understanding the Concept:
Biological classification is the scientific arrangement of organisms into hierarchical categories based on their structural, evolutionary, and physiological relationships.

Step 2: Detailed Explanation:

• R.H. Whittaker (1969): Proposed the Five Kingdom Classification. The kingdoms defined by him were Monera, Protista, Fungi, Plantae, and Animalia. The main criteria for classification used by him included cell structure, body organization, mode of nutrition, reproduction, and phylogenetic relationships.
• Carolus Linnaeus: Proposed the Two Kingdom system (Plantae and Animalia).
• Ernst Haeckel: Proposed the Three Kingdom system (introducing Protista).

Step 3: Final Answer:
The five kingdom classification was proposed by Whittaker.