SSC Biology suggestion 2019 [PDF Download]. Biology is the subject of the science group. SSC biology belongs to class 9 and class 10. It is an optional /compulsory subject. A student can make this subject either optional or main. The student who wants to be a doctor this subject is mandatory for them. But, the student who wants to be an … [Read more...] about SSC Biology Suggestion 2019 [PDF Download]