This is something i have been wondering for my music class.
The bass clef is the written musical staff also called the F clef to write or display the musical notes and rests for musical instruments/voices from middle C on the piano to the lowest notes on the piano. For pianists it would typically be for the left hand, for voice it would be for bass/baritone. If you want online theory lessons let me know. I am a new tutor on here. Best wishes in your studies.