HISD students' biology scores improved more than any other subject during state intervention. Ninth-grade students at NES ...

Get here detailed ISC Board Class 12 Biology Syllabus chapter-wise, marking scheme, weightage, paper pattern and Download PDF.

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AIR 4 Mrinal Jha said he dedicated around 10-12 hours to self-study on school holidays and about 6-7 hours on regular school days.