Which two body systems most directly cause the arm to bend

Choose the molecule that is described by each phrase. energy used during long activities:

Afisherman is dragging his boat from the shore out into the ocean. match the following lists of areas he will move over in the correct order. continental rise continental slope continental shelf [tex]1.[/tex] [tex]2.[/tex] [tex]3.[/tex]

What molecule does hemoglobin decay into over time