Something very useful and widely used from a volcano is the Basalt fibre because it has the advantage of good combination properties. It is aplied in fire-fighting, environment protection, aviation, the arms industry, atomobile and plastics and even in the construction industry
A nucleus controls the movement of the cell, if that helps.
It is to help your body and make it strong and healthy
When organisms produce more offspring than survive, the area can become overcrowded, and they will compete for nutrients and other resources and necessities.
