A double-blind placebo-controlled study is
A) an idea generated by scientists based on their observations.
B) research in which neither the subjects nor the scientists know which group received the treatment and which group received a placebo.
C) a stepwise process used by scientists to identify effective placebos.
D) research that involves looking at factors in two or more groups of subjects to see if there is a relationship to certain outcomes.
B
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Batters are mixed only until
A. the dry ingredients are moistened. B. the eggs are no longer visible. C. the butter is melted. D. all of the above occurs.
Why might copper deficiency lead to anemia?
a. copper maintains the integrity of the hemoglobin molecule b. copper containing proteins are required for iron transport c. copper is an essential element in the formation of the myoglobin d. copper deficiency causes vitamin C deficiency thereby reducing iron absorption.
Supplemental zinc can interfere with the absorption of iron and copper
Indicate whether the statement is true or false
The current RDA for vitamin A is expressed in
A. Alpha-Tocopherol Equivalents (ATE). B. Beta Carotene International Units (BCIU). C. Retinol Activity Equivalents (RAE). D. None of these answers are correct.