`"_____________"` uses the chemical constituents of the plant to resolve confusions.

Options

A. Cytotaxonomy
B. Karyotaxonomy
C. Chemotaxonomy
D. Numerical taxonomy

Answer

To solve the question, we need to identify which branch of taxonomy uses the chemical constituents of plants to resolve confusion. Here’s a step-by-step breakdown:

1. **Understanding the Options**: The question provides four options: cytotaxonomy, karyotaxonomy, chemotaxonomy, and numerical taxonomy. We need to analyze each one to determine which one fits the description.

2. **Analyzing Cytotaxonomy**: This branch focuses on cytological information, such as chromosome number, structure, and behavior. Since it does not deal with chemical constituents, this option is incorrect.

3. **Analyzing Karyotaxonomy**: Karyotaxonomy deals with the structure of the nucleus and the organization of chromosomes. Like cytotaxonomy, it does not involve chemical constituents, so this option is also incorrect.

4. **Analyzing Chemotaxonomy**: Chemotaxonomy specifically uses the chemical constituents of plants, such as secondary metabolites, to classify and differentiate plant species. This matches the description given in the question, making it the correct answer.

5. **Analyzing Numerical Taxonomy**: This branch is based on observable characteristics and assigns numerical values to different traits for analysis. It does not focus on chemical constituents, so this option is incorrect.

6. **Conclusion**: The correct answer to the question is "Chemotaxonomy," as it is the branch that uses the chemical constituents of plants to resolve confusion.

Final Answer: **Chemotaxonomy**

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