It is important to understand because it's the way all cells reproduce (except sperm and egg cells, they do meiosis), and our cells are the essential parts of our whole being.
I don't have enough information but it could be natural selection or mutations.
C because it is a ready to eat food
Fires in grasslands prevent the growth of shrubs. Plants can survive in these fires because most of them have parts underground, where fire cannot reach. Animals and runners aren't affected by this, because they can leave.
