2. the is a semipermeable membrane that forms a boundary between the cell and the external environment.
a. golgi apparatus
b. nucleus
c. vacuole
d. cell membrane
e. mitochondrion

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]