<span>b) The diverse proteins found in and attached to membranes perform many important functions.
(c) The framework of a membrane is a bilayer of phospholipids with their hydrophilic heads facing the aqueous environment inside and outside of the cell and their hydrophobic tails clustered in the center.
(d) Because membranes are fluid, membrane proteins and phospholipids can drift about in the membrane.</span>
Genes are the proof of evolution and show that we are related to another species that existed long ago. So that means we all share some of the same genes.
