Which of the Following Is Used by the Text Author

question 91

Multiple Choice

Which of the following is used by the text author to explain why people exhibit differences in metabolic efficiency?

• A) Metabolic efficiency is advantageous for surviving in an environment where calories are hard to obtain.
• B) Metabolic efficiency results in obesity but does not result in health disorder.
• C) The excessive accumulation of fat is a social proxy for wealth.
• D) Obesity allowed hunter-gatherers to forage for long periods of time.
• E) Genetic mutations involving metabolic efficiency are quite common.

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Definitions:

Fine-grained

Material having small, closely packed particles or crystals, often refers to sediments or rocks with such texture.

Clastic Rocks

Sedimentary rocks composed of fragments, or clasts, of pre-existing minerals and rocks that have been transported, deposited, and lithified.

Turbidity Current

A current in water or air that moves downward because it is more dense than the adjacent water or air, especially applied to a swift, bottom-flowing current of water and suspended sediment on the seafloor or the bottom of a lake.

Continental Shelf

A gently sloping, relatively shallow area of seafloor that flanks a continent and is underlain by thinned continental crust.