The outside of a bacterial cell is protected by a structure called a

How does a gymnosperm prevent itself from pollinating the same tree

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?

If your blood becomes too concentrated with iona, what will happen to the red blood cells