The Accounts Payable clerk is responsible for providing payment on an account.

Platelets, also known as thrombocytes or megakaryocyte fragments, are responsible for blood clotting.

The earth's rotation is responsible for the different seasons on earth. The earth, of course, rotates on its axis.

Hydrogen peroxide

when you first see the dentist and you give them your name, your are responsible, if he is under 18.when he becomes of age he is responsible.and if you are the insured as well