Systematics is the study of

Options

A. Diversity amongst groups of organisms
B. Grouping of organisms
C. Identification and grouping of organisms
D. Identification, classification and taxonomy

Answer

**Step-by-Step Solution:**

1. **Understanding Systematics**: Systematics is a branch of biology that deals with the classification and naming of organisms. It helps in understanding the diversity of life on Earth.

2. **Identifying Key Components**: The key components of systematics include:
- **Identification**: Recognizing and naming organisms.
- **Classification**: Organizing organisms into groups based on shared characteristics.
- **Taxonomy**: The science of naming and classifying organisms.

3. **Analyzing the Options**:
- **Option 1**: Diversity among groups of organisms - This is a part of systematics but not the complete definition.
- **Option 2**: Grouping of organisms - This is relevant but lacks the aspect of identification and naming.
- **Option 3**: Identification and grouping of organisms - This is closer but still does not include taxonomy.
- **Option 4**: Identification, classification, and taxonomy - This option encompasses all aspects of systematics.

4. **Conclusion**: The most comprehensive definition of systematics includes identification, classification, and taxonomy. Therefore, the correct answer is **Option D**.

**Final Answer**: Systematics is the study of identification, classification, and taxonomy of organisms.

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