______________________ are also known as "uppers.". This is a classification of drugs that stimulate the central nervous system and have high potential for abuse
Fill in the blank(s) with correct word
Amphetamines
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The preferred unit of expression of vitamin A is the
a. milligram. b. global unit. c. international unit. d. retinol activity equivalent.
Studies on nutrition use two groups of subjects who are called the:
a. scientific group and control group. b. experimental group and control group. c. placebo group and control group. d. peer group and control group.
How does the body maintain a steady supply of calcium for its tissues to support functions such as muscle contractions, blood pressure regulation, and the conduction of neural impulses?
Which of the following statements is true about vitamin characteristics?
A. They are inorganic. B. They cannot be stored by the body. C. They directly supply energy to the body. D. They help regulate chemical reactions in the body.