What are biopharmaceuticals/Biologic drugs

This video gives you a quick idea about what is a biopharma or a biologic drug.
To refer the content in more detail, here are the links.
https://www.pharmaguideline.com/2014/...
https://www.ncbi.nlm.nih.gov/pmc/arti...
https://en.wikipedia.org/wiki/List_of...