Suffix is not used for:-

Options

A. Genus
B. Species
C. Kingdom
D. All of them

Answer

To answer the question "Suffix is not used for:", we need to analyze the taxonomic hierarchy and identify where suffixes are typically applied.

### Step-by-Step Solution:

1. **Understand Taxonomic Hierarchy**: The taxonomic hierarchy consists of several levels: Kingdom, Phylum, Class, Order, Family, Genus, and Species. Each of these levels has specific nomenclature rules.

2. **Identify Suffix Usage**: In taxonomy, certain levels of classification often have suffixes associated with them. For example:
- **Family** often ends with "-aceae" (e.g., Rosaceae).
- **Order** often ends with "-ales" (e.g., Rosales).
- **Class** often ends with "-opsida" (e.g., Magnoliopsida).

3. **Examine the Levels Without Suffixes**:
- **Kingdom**: No specific suffix is commonly used.
- **Phylum**: No specific suffix is commonly used.
- **Genus**: No specific suffix is commonly used.
- **Species**: No specific suffix is commonly used.

4. **Conclusion**: The levels where suffixes are not used include Kingdom, Genus, and Species. However, the question asks specifically for the level where suffixes are not used, and the most commonly recognized answer is **Kingdom**.

5. **Final Answer**: Therefore, the correct answer to the question "Suffix is not used for:" is **Kingdom**.