Based on the updated CBSE 2026 syllabus and guidelines of the official sample paper. 15 fully solved sample question papers with step-by-step solutions to strengthen answer-writing skills and conceptual understanding. Competency-based and case-study questions are included in every paper to meet the latest exam requirements. Rapid Revision Sheets and topic-wise Mind Maps for quick recap and effective last-minute review of core Biology concepts. "Final 50" most important and exam-oriented questions highlighted for focused practice on high-weightage topics. Latest CBSE sample question paper included for complete familiarity with exam format and marking scheme.