Which structure is the boundary between a living cell and its environment

(! ) what’s fracking and what does it have to do with carbon, carbon dioxide, or fossil fuels?

1) what three conditions must be present for minerals to form through natural processes? 2) why are minerals considered inorganic substances? 3) how do oxides differ from other minerals that contain oxygen atoms? 4) how is a sulfide different from a sulfate? what makes native elements unique?

Which statement describe events that occur during interphase?