Class 11 NEET Biology Biological Classification Questions Part 2

Concept:R.H. Whittaker's Five Kingdom Classification (1969) was based on a set of fundamental biological characteristics.Key Fact:The five main criteria used were: cell structure, body organisation, mode of nutrition, reproduction, and phylogenetic relationships.Explanation:Whittaker did not include the presence of a flagellum as a primary criterion.Flagella are specific locomotory structures found in some organisms, but they are not a defining feature for kingdom-level classification.The correct set of criteria from the given list are: cell structure (A), body organisation (B), reproduction (D), and phylogenetic relationships (E).Note that "mode of nutrition" is another main criterion, but it is not listed in the options A–E.Answer:C. A, B, D and E only