Important question papers for Biology Half yearly are very crucial for acting the exams with good grades. The questions banks of the same kind can be referred through various sample papers provided by ample schools. You can find a series of sample papers for Biology and get the important question from these from the following link -

https://school.careers360.com/articles/class-12-sample-papers

Consequently you can also follow various authors who have collected the important questions for the same subjects.

The 1st PUC mid-term biology exam paper is usually for 80 marks and the time is 3 hours.You can download sample or previous year papers 1st PUC from the official Karnataka board website or from Careers360.

https://school.careers360.com/boards/dpue-karnataka/karnataka-1st-puc-mid-term-question-paper-2025-26