The cell membrane is made up of a double layer of phospholipids. That is also the reason why the cell membrane is called the phospholipid bilayer; containing two layers of phospholipids.
Google images, I'm guessing.
We share an environment with many harmful organisms, so we need a way to protect ourselves
Answer:
If An organ fails:
Major organs that can fail include the brain, heart, lungs, kidneys, liver and intestines (gut). If one of these organs stops working, the patient will not be able to survive without the help of very strong medicines and/or machines.
Explanation:
I know this because I'm in advanced bio!!