What is meant by "Administrative experience" when listed as a job requirement?

Help! I'm starting to apply for jobs now, and I'm so nervous to even start more applications until my mom gets home from work!

Also, would it make sense if I take an entry level job as an administrative assistant at a medical clinic if I have a Bachelor's in Biology? I figure I can start there and work my way up since I'll be around medical jobs. Right? HELP!