Answer:
Cells need to do between divisions to make sure that a full set of DNA gets passed on to each daughter cell - The DNA must be copied so there is a full set of DNA to pass on to each daughter cell.
The type of fossils that are found only rarely are complete skeletons
It affects the resources because it could damage or use them all. like in a desert animals might compete for a watering hole. or if there are a lot of herbivores in one area then some other predatorsmight come and then it would be a battle ground and without the herbivores then some things will grow out of control and then it might not be suitable for living.
