Reddish hair in children is often a sign of malnourishment in developing nations such as Haiti. What biomolecule is needed for hair growth and is probably lacking in the diets of these children?
A) carbohydrates
B) nucleic acids
C) DNA
D) proteins
E) lipids
Answer: D
Environmental & Atmospheric Sciences
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A) nuclear power B) solar power C) hydropower D) wind power E) biomass
Environmental & Atmospheric Sciences
What percent of tallgrass prairie in the United States has been transformed into farmland and other uses?
A. 79% B. 99% C. 5% D. 55%
Environmental & Atmospheric Sciences
Which of the following is not associated with a fault-block mountain range?
A. Normal faults B. Extension C. The Sierra Nevada D. Rapid uplift E. The Tetons
Environmental & Atmospheric Sciences
Surface indicators of turbulence in stream flows include eddies and ________
A) meandering B) whirlpools C) braided streams D) dissolved load E) fluvial processes
Environmental & Atmospheric Sciences