Given a premise, retrieve a hypothesis that is entailed by the premise.QA practices within an aquatic toxicology laboratory must address all activities that affect the quality of the final effluent toxicity data, such  (1) effluent sampling and handling; (2) the source and condition of the test organisms; (3) condition and operation of equipment; (4) test conditions; (5) instrument calibration; (6) replication;
The activities affect the quality of the final data.
There is no link between data and practices.