I think it is the cell membrane, but there is a possibility it is the cell wall. I think the cell membrane is correct because the skin does allow certain things into your skin cells, such as water. Similarly, cell membranes allow certain things in the cell. The cell membrane basically acts as the security guard of the cell.
A policy of extending a nation power by gaining political and economic control over other nation.
Empress Alexandra became increasingly unpopular with the Russian people because of her relationship with Rasputin.
<u>Explanation</u>
Alexandra and Rasputin's relationship was mostly based on her son's illness (he had hemophilia).
However, Russian people didn't like this because they believed that they were having an affair and that Rasputin was the one controlling Russia and not Alexandra.
The answer is Lincoln Nebraska