You notice that water is running off the feathers of a bird in the rain.The reason is probably that the bird has coated the feathers with ________,which keeps the water out of them.

Question

Quizplus · Accepted Answer

Lipids such as oils and waxes are hydrophobic (water-repelling) and can be found on the surface of feathers of birds to help repel water and keep the feathers dry. Proteins, polysaccharides, and nucleic acids are not known to have this water-repelling property.

You Notice That Water Is Running Off the Feathers of a Bird