What is a line-item veto? Ο Α. .
a vote of citizens to repeal a new law that they disagree with
OB.
a means by which the governor can sign into law only part of a bill
O C.
a way for one house of the legislature to stop a bill passed by the other house
OD.
a ruling of the judicial branch to rule a law unconstitutional

answer; psychological influences;

it might look like that the ideal way to research the health effects of trans fats is through a controlled experimental feeding trial. but these kinds of trial have several important limitations that the researcher must look into:

short in duration (this factor usually checks up on the intermediary risk factors rather than the actual outcomes of the disease)

limited dietary changes

only makes use of healthy participants