Answer:
The biomolecule lipid has the character that he is trying to replicate.
Step-by-step explanation:
Lipid is the biomolecule that has waterproof nature. Various substances like fats, oils, wax etc fall in the category of Lipids. The functions of lipids are energy storage and waterproofing.
Lipids can store energy for a longer period compared to the biomolecule carbohydrate which is a quick reserve of energy. Lipids have a hydrophilic head and one or more hydrophobic tails. This factor contributes to its waterproof nature.
Human skin remains waterproof due to the presence of lipids on skin surface.