Answer: two layer liquid (bilayer)
Step-by-step explanation:
First of all let me explain a few terms
Hydrophobic side: means water disliking part... From the phobia.
Hydrophilic side means water loving side.
So the phospholipid have this two parts. When you shake it in water, the hydrophilic part will interact and mix with water while the hydrophobic part will just float and separated into two layers.. Just like pouring groundnut oil into water.