Water flows off the wings of birds and insects due to the presence of

Options

A. Waxes
B. Sugars
C. Proteins
D. Minerals

Answer

A

Explanation

Insects and birds have the simplest surface waxes that serve to waterproof feathers. These consist of long-chain hydrocarbons. The interlocking feather barbs and a special waxy coating create a shield that water runs off of. Besides, while a few components present in surface lipids can prevent growth of pathogens, the total surface was layer certainly functions to prevent microbial entry into the organism.