Your first step should occur during a MSU Transfer Day run by the Center for Academic Advising and Adult Learning (CAAAL). They will answer most of your general questions. You will find in many cases, the courses you took elsewhere will automatically be assigned Montclair State course numbers.
CAAAL will then direct you to the department chair of your major department. In Biology and Molecular Biology, the chair will evaluate all the biology courses you took at other institutions and advise you of the courses you need to take at Montclair State.
For non-biology transfer courses, you need to visit the department offices for each course you need evaluated.