Lipids provide water barrier to:
Correct answer: D. Birds and fur containing animals
- A. Birds
- B. Fur containing animals
- C. Insects
- D. Birds and fur containing animals
Explanation
A thin coating of fats on the fur of animals and the feathers of birds saves them from absorbing rainwater and enables them to thermoregulate in winter.
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About Biological Molecules
The chapter covers water's polarity and biological roles, carbohydrates, lipids, proteins and nucleic acids, including their monomers, bonds, structures and functions. It also distinguishes RNA from DNA and explains conjugated molecules such as glycoproteins, glycolipids and nucleoproteins, which combine organic molecules with a non-protein component.
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