Why do phospholipids form a bilayer in water? O The phosphate portions repel each other.
O The hydrophilic and hydrophobic parts attract each other.
O The phosphate portions attract water, and the lipid portions repel water.
O The lipid portions attract water, and the phosphate portions repel water.

C. The phosphate portions attract water, and the lipid portions repel water

Explanation:

The phosphate parts are polar, meaning they're partially charged, so they attract water molecules, which also have partial charges. The lipids are non-polar, so they don't attract water molecules, meaning they can't dissolve in water.

the most common energy conversion is from kinetic energy to potential energy, and then from potential energy to kinetic energy.

later on comes the heat energy, mechanical energy, and other energy conversions.

this energy conversion is so common that we can find it in our day to day lives as well.

- one of the most common energy conversions involves the changing of potential energy to kinetic energy or kinetic energy to potential energy