What is a gyre? A - A small, concentrated system of circulating ocean currents
B - Large system of circulating ocean currents,
C -Large systems of water spouts that transfer moisture to the air.

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?