Explanation:
I think it is to support and protect the cell and keeps large harmful molecules outside the cell because it allows only materials such as gases, water to pass through it.
44) C) <span>mitosis
45) C) </span><span>mitochondria
46) C) Dominant
Hope this helps!</span>
The process of metal refining is done for the purpose of fixing the metals impurities through the reduction process. On the other hand, problems are encountered in doing this process. Metal refining produces refined metals but the main downside of this process is the production of too much waste after.