Five Kingdom system of classification suggested by R.H. Whittaker is not based on

Options

A. Complexity of body organisation
B. Presence or absence of a well-defined nucleus
C. Mode of reproduction
D. Mode of nutrition

Explanation

To solve the question regarding the Five Kingdom system of classification proposed by R.H. Whittaker, we need to analyze the basis of this classification system and identify which option is not a criterion used by Whittaker.

### Step-by-Step Solution:

1. **Understand the Five Kingdom System**: R.H. Whittaker proposed a classification system that divides living organisms into five kingdoms: Monera, Protista, Fungi, Plantae, and Animalia. Each kingdom is based on specific characteristics of the organisms.

2. **Identify the Criteria Used**: The Five Kingdom system is based on several criteria:
- **Complexity of Body Organization**: This refers to whether the organism is unicellular or multicellular, and the complexity of its cellular structure.
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