Home Biology Biological Classification General Which of the following characteristic(s) is/…
Biology Biological Classification General Single Correct MCQ
Published on: August 14, 2026

Which of the following characteristic(s) is/are used by Whittaker for the classification of organisms ?

A
Mode of nutrition
B
Thallus organization
C
Phylogenetic relationships
D
All of the above

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Verified by Experts
The correct answer is:
D

R.H. Whittaker proposed the Five Kingdom Classification system in 1969 based on five main scientific criteria:

Mode of nutrition: Distinguishing between autotrophic (producers), heterotrophic (consumers), and saprophytic (decomposers) organisms.

Thallus (Body) organization: Considering the complexity of the organism's body, such as whether it is unicellular or multicellular.

Phylogenetic relationships: Evaluating the evolutionary history and ancestral links between different groups of organisms.

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