The two countries are strong trading companies due to they both hate North Korea. It's like the old saying, An enemy of my enemy is a friend to me.
The option that best represents hoy cell membrane work would be option A. The membrane allows only certain molecules to move into the cell. For example, water can move freely in and out of the cell, but if you have larger molecules or if they have a charge, they cannot pass. In the case of oxygen and carbon dioxide, they're free to move, but proteins and glucose can't move into the cell. This is because oxygen can move from a high concentration to a low concentration area and vice-versa.
Im going to say D as this event freed the Israelites! sorry if im wrong :/
Middle class. I think? Your question was very confusing.
