Scientists working in the food system _____.
a. can never be absolutely certain that an experiment has eliminated all of the variables that might influence its results
b. must continue their experiments until they have eliminated all of the variables that might influence the results
c. are required by the FDA to perform, identify, and document all of the possible variables that could influence the results of an experiment
d. rely on absolute certainties in their experiments to ensure food safety in the products that they test and approve
Question 2
As income grows, consumers in lower income countries shift their food purchases _____.
a. away from high-fat products toward carbohydrate-rich food products
b. away from meat and dairy products toward carbohydrate-rich foods
c. away from carbohydrate-rich food toward vegetarian/vegan products
d. away from carbohydrate-rich foods toward meat and dairy products
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