Well, to answer your first question, Because there are places on Earth that are both biologically rich — and deeply threatened. For our own sake, we must work to protect them. and for your 2nd question, 3 characteristics of magnetic reversal are: field, bar magnet, and molten material. Hope this helps
D. it serves as a link between membrane proteins on adjacent membranes.
cannot breathe, is not a living organism, doesn't grow doesn't move
