The pigment responsible for skin color is
A) melanin.
B) keratin.
C) collagen.
D) elastin.
A
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According to the National Institute of Standards and Technology of the U.S. Department of Commerce, a gas cylinder that is color-coded brown and green should contain which of the fol-lowing?
a. O2-N2 mixture b. O2-CO2 mixture c. CO2 d. O2-He mixture
A ____ is a low-pitched, soft scratching sound that occurs at any time during the cardiac cycle and indicates pericarditis, or an inflammation of the pericardial sac that surrounds the heart.
A. rub B. thrill C. heave D. refill
When used correctly, ________ produce(s) high levels of destruction of both gram-positive and gram-negative bacteria
A. alcohol-based skin cleaner, foams, and creams B. plain soap (liquid or bar) C. germicidal soap D. hot water
Self-esteem is:
A. confidence in the honesty, integrity, and reliability of another person. B. social rank in a community based on income, education, and occupation. C. aims, objects, or ends that one strives to attain. D. belief in oneself, self-respect.