Vitamin K is essential for the process of
A. digestion.
B. absorption.
C. reproduction.
D. coagulation.
D
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Scientists in a Central American country are studying factors that may be associated with delayed physical growth among a group of low-income children. The children live in a region of the nation that has high levels of lead in drinking water. This study is an example of a(an) ________ study.
A. introspective B. uncontrollable C. conventional D. epidemiological
All of the following are true regarding vitamins EXCEPT:
a. if adequate amounts are not consumed, deficiency diseases develop. b. they are considered essential because the body cannot produce them. c. eating at least one serving of fruit or vegetable a day prevents deficiencies. d. they perform specific functions in the body.
A patient with severe cirrhosis of the liver has received a new liver. He is post op 3 months and is rejecting. Through what main mechanism has this occurred?
a. the complement cells reject the host T cells b. vasculature to the new organ has not been optimal c. there was insufficient immunosuppressive therapy d. antibody to minor histocompatibility antigens
Fortifying foods doesn't alter their nutritional content.
a. true b. false