17. Extra topics/questions in old NCERT chapter-17 as compared to reduced 2024-2025 syllabus are mentioned below.

All topics/questions are same in both old and new NCERT syllabus for chapter-17 Breathing and exchange of gases.

Ch-17 Breathing and exchange of gases

18. Extra topics/questions in old NCERT chapter-18 as compared to reduced 2024-2025 syllabus are mentioned below.

All topics/questions are same in both old and new NCERT syllabus for chapter-18 Body fluids and circulation.

Ch-18 Body fluids and circulation