<span>The function of structure E is to stabilize the phospholipids and these phospholipids constitutes the structure of the cell membrane as in like two layers with proteins either passing through and just staying on layer surface. These phospholipids are made up of phosphorus, fatty acids and alcohols.</span>
Yes, this is true, and it is actually one of the organisms driving evolution! Some organisms develop mutations that are actually beneficial (better eye-sight, for example) and they're more likely to pass those to their children that individuals without those mutations!