Hi

You can download Bihar Board model question papers for class 12th Biology and other subjects as well by visiting our page the link for the same is given below

https://school.careers360.com/articles/bihar-board-12th-model-paper/amp#referrer=https://www.google.com

These  papers will help you to understand the types of questions which are asked in exam, you will understand the important topics which are covered in the exam by practising them so that you can accordingly prepare for the exam , you will also get to know your preparation level .

Best of luck for your exam preparation.

Thank you