Yes, solving previous years question papers can help you in understanding the interconnections between different topics in the Zoology optional subject. Here's how:

1. Comprehensive Coverage:
- Solving previous years' question papers provides you with a comprehensive coverage of the entire syllabus.
- It helps you understand the distribution of questions across various topics and subtopics.
- By attempting these papers, you can identify the areas where you need to focus more and improve your understanding.

2. Interdisciplinary Approach:
- Zoology is a subject that involves the study of various aspects of animal life, including their anatomy, physiology, behavior, evolution, and ecology.
- Solving previous years' question papers helps you understand how different topics are interconnected.
- You can observe how questions from different areas are combined to test your overall understanding of the subject.
- This approach allows you to develop a holistic perspective on zoology and appreciate the interrelationships between different concepts.

3. Integration of Knowledge:
- Zoology is a subject that requires integration of knowledge from various disciplines, such as biology, chemistry, and physics.
- Solving previous years' question papers helps you integrate your knowledge and apply it to different scenarios.
- You can identify common themes and concepts that link different topics together.
- By solving a variety of questions, you can enhance your ability to connect different pieces of information and develop a deeper understanding of the subject.

4. Exam Pattern and Time Management:
- Solving previous years' question papers familiarizes you with the exam pattern and helps you understand the distribution of marks across different topics.
- You can identify the types of questions that are frequently asked and prepare accordingly.
- It also helps you practice time management by giving you an idea of how much time to allocate to different sections or topics.

Conclusion:
Solving previous years' question papers is an effective strategy to understand the interconnections between different topics in the Zoology optional subject. It helps you develop a comprehensive understanding of the subject, integrate knowledge from various disciplines, and prepare for the exam effectively.