今天受到I-765和 I-485 Receipt Notice，很高兴，有几个问题，请教大家：
1。I-765 Receipt Notice 说：
Biometrics, the next step is to have your biometrics taken at a BCIS application support center(ASC). Please make an appointment by calling NCSC 1800-375-5283 to schedule an appointment.
2. I-485 Receipt Notice 说：
Fingerprints and Biometrics, the next step is to have your fingerprints and biometrics taken at a BCIS application support center(ASC). Please make an appointment by calling NCSC 1800-375-5283 to schedule an appointment.
两者有何区别？什么是Biometrics?
Thanks a lot.
老马师