Yes! A FIG is a package deal. However, some FIGs are standalone classes which are FIGs with only the GEN ST 199 course. 

FIGs are great because they combine courses that show you different perspectives of a common field of study.

For example, imagine if a FIG has CSE and GWSS. We have a shortage of women in the stem field, how can taking this class coupled with computer science broaden your understanding of that subject?

Or a FIG with CHEM 142 (many pre-med majors) linked with a sociology course on health disparities or with one of the public health courses – allows you to take a look at different aspects of the medical field. You gain exposure to a subject from varying disciplines and areas of knowledge.