I have a problem at biology at sAt that I cant answer the exam even I study the lessons so what can I do answer please

Dear Student, If you are getting problem and not answering questions then you should revise the notes and also take help from Meritnation video lectures which will help you a lot. And learn each and every topic and try to ask questions and if you get any problem in understanding those topic then ask on our forum our experts provide you help. Looking forward to hear from you again. Regards.