Why do phospholipids form a bilayer in water?

Im is in a crowd of people at the mall looking for his girlfriend tammy, who was supposed to meet him for dinner. jim realizes tammy is across the room as he catches a whiff of her overpowering perfume, 'paris #6'. which process explains why jim is able to smell the perfume?

The reactions that occur in the ribosome, where amino acids are combined to form proteins are anabolic or catabolic?

In the water cycle , when does water undergo a chemical change