"NIGHT WORKERS HAVE A HARD TIME NOT PAY ATTENTION TO THE 9-...

839. "Night workers have a hard time not pay attention to the 9-to-5day, because of noises or family A B obligations or that's the only time they can go to the dentist," says biologist Kennth Groth, who studies Cthe circadian clock at Argonne National Laboratory in Lemont, Ill. DAnswer. 834. (A) 835. (A) 836. (A) 837. (A) 838. (C) 839. (A)