Unlike schizophrenia or an eating disorder, personality disorders can be viewed as disorders of .a. biology rather than learning. b. learning rather than disease. c. degree rather than kind. d. functioning rather than disease.

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?