Given a scientific passage and an answer, generate a question for the given answer.

[Q]: Passage: Nutrients are substances that the body needs for energy, building materials, and control of body processes. Carbohydrates, proteins, lipids, and water are nutrients needed in relatively large amounts. Vitamins and minerals are nutrients needed in much smaller amounts. Answer: nutrients
[A]: What are substances that the body needs for energy, building materials, and control of body processes?

[Q]: Passage: Only weak London dispersion forces hold molecules of nonpolar alkanes together in the liquid phase. Consequently, less energy is required to break these molecules away from the surface of the liquid and turn them into a vapor. The stronger hydrogen bonding between alcohol molecules means that more energy is required to convert the liquid to vapor, and boiling points are therefore high. Answer: stronger hydrogen bonding
[A]: What kind of bonding between alcohol molecules means that more energy is required to convert the liquid to vapor, and boiling points are therefore high?

[Q]: Passage: Darwin coined the term fitness to refer to an organism's relative ability to survive and produce fertile offspring. Nature selects the variations that are most useful. Therefore, he called this type of selection natural selection . Answer: darwin
[A]:
Who coined the term natural selection?