Which of the following branches of biology applies to both plants
and animals?

Options

A. Entomology
B. Zoology
C. Bacteriology
D. Taxonomy

Answer

To solve the question of which branch of biology applies to both plants and animals, we will analyze each option provided.

### Step-by-Step Solution:

1. **Understand the Options**: We have four options to consider:
- Entomology
- Zoology
- Bacteriology
- Taxonomy

2. **Analyze Each Option**:
- **Entomology**: This branch focuses specifically on the study of insects. Since insects are animals, this branch does not apply to plants.
- **Zoology**: This is the study of animals. It does not encompass plants, so it is not applicable to both.
- **Bacteriology**: This branch deals with the study of bacteria. Bacteria are neither plants nor animals, so this option does not apply to both.
- **Taxonomy**: This is the science of naming, grouping, and classifying organisms. It includes both plants and animals in its classification system.

3. **Conclusion**: After analyzing all the options, we find that only taxonomy applies to both plants and animals.

### Final Answer:
The correct answer is **Taxonomy**.

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