Aashna remembers exactly where she was, what she was wearing, and who she was with when she first heard the news of the terrorist attacks on September 11, 2001. Aashna has a .

the awnser is that is tru your

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answer; through play and social interaction;

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