Question

How many kingdoms in Whittaker’s five kingdom classification system exhibit both autotrophic as well as heterotrophic mode of nutrition?

• A. 4
• B. 2
• C. 1
• D. 3

Answer 1

The correct option is B

2

The correct option is B:

Explanation of the correct option:

1. The five-kingdom classification was proposed by R. H. Whittaker. Living organisms are classified into five kingdoms in this classification: Monera, Protista, Fungi, Plantae, and Animalia.
2. Cell structure, body organisation, mechanism of nourishment and reproduction, and phylogenetic links were the major factors for the five-kingdom classification.
3. Monera and protista, two of the five kingdoms, comprised both autotrophic and heterotrophic organisms.

Explanation of the incorrect option:

Option A:

Fungi and animalia were the only kingdoms with heterotrophic organisms, whereas plantae had only autotrophic organisms.

Option C:

Monera and protista, two of the five kingdoms, comprised both autotrophic and heterotrophic organisms

Option D:

Fungi and animalia were the only kingdoms with heterotrophic organisms, whereas plantae had only autotrophic organisms.

Final answer: 2 kingdoms in Whittaker’s five kingdom classification system exhibit both autotrophic as well as heterotrophic mode of nutrition