Taxonomic key is one of the taxonomic tools in the identification and classification of plants and animals. It is used in the preparation of

Options

A. Monographs
B. Flora
C. Both (a) & (b)
D. None of these

Answer

To solve the question regarding the use of a taxonomic key in the identification and classification of plants and animals, we will analyze the options provided and understand the concepts involved.

### Step-by-Step Solution:

1. **Understanding Taxonomic Key**:
- A taxonomic key is a tool that helps in the identification of organisms based on their characteristics. It typically consists of a series of choices that lead the user to the correct name of a given item.

2. **Identifying the Options**:
- The options given are:
- A) Monograph
- B) Flora
- C) Both A and B
- D) None of these

3. **Defining Monograph**:
- A monograph is a detailed written study or report on a single specialized subject, typically focusing on a particular taxon (group of organisms). It contains comprehensive information about that taxon, including its classification, characteristics, and other relevant data.

4. **Defining Flora**:
- Flora refers to a comprehensive description of the plant species found in a particular region or environment. It includes information about the types of plants, their distribution, and their ecological relationships.

5. **Analyzing the Options**:
- Option A (Monograph) is correct because a taxonomic key can be used to prepare a monograph that includes detailed information about specific taxa.
- Option B (Flora) is also correct because a taxonomic key can be used to compile information about the plant species in a specific area, which is what a flora does.
- Option C (Both A and B) is therefore correct as both monographs and floras can be prepared using taxonomic keys.
- Option D (None of these) is incorrect since we have established that both A and B are valid.

6. **Conclusion**:
- The correct answer to the question is **C) Both A and B**.