As blood lead levels increase, _____
a. only blood calcium levels decrease
b. only blood iron levels decrease
c. blood calcium and iron levels decrease
d. only blood calcium levels increase
e. blood calcium and iron levels increase
c
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Blake is a college student whose diet consists primarily of enriched white bread, chicken, meat, cheese, yogurt, and milk. Furthermore, he doesn't take dietary supplements. Based on this information, Blake has a high risk of developing ________.
A. scurvy B. beriberi C. neural tube defects D. pellagra
The most common body composition assessments used in ?tness centers are the BMI, the skinfold test, and the ________
A) waist-to-hip ratio B) hydrostatic weighing C) BIA D) DXA
On sunny days, Juan spends at least 20 minutes exercising outdoors, because he knows sunlight helps his body make ________.
A. glucose B. vitamin D C. copper D. choline
How many amino acids are considered to be essential?
A) 2 B) 9 C) 12 D) 20