Select all of the following statements that are true about a daily food plan.

daily food plans are the same for everyone.

food portions in restaurants tend to be much larger than serving sizes recommended.

in order to use my plate properly, it is important to know your personal daily food plan.

Investigator a has biological specimens that are coded and linked to identifiers of the source individuals. investigator a provides the specimens to investigator b but does not provide the individual identifiers. investigator b agrees not to re-identify the source individuals. is investigator b's research using the biospecimens human subjects research according to the definition of human subjects research in the federal regulations?